Mud Madness at the annual Jaffa Cakes charity three-mile run at Foymore Lodge near Portadown this afternoon, on April 13, 2014. A total of a thousand competitors and fun-runners took part in the two races held over the mudstrewn endurance course. (Photo by Alan Lewis/Photopress Belfast)

Myanmar children dressed as punks take part in the Thingyan water festival in Yangon, Myanmar, 12 April 2014. The annual water festival marks the traditional New Year in countries such as Myanmar, Thailand, Laos and Cambodia. (Photo by Lynn Bo Bo/EPA)

A fan of Ajax at the Leidseplein after the Eredivisie soccer match against ADO Den Haag in Amsterdam, The Netherlands, 13 April 2014. After the match there was unrest between the fans and the police. Ajax won the match of ADO but is still not champion. (Photo by Evert Elzinga/EPA)

Members of the Syrian government forces celebrate in al-Sarkha village, in the Qalamun mountains, northeast of Damascus, after taking control of the village from rebel fighters, on April 14, 2014. Government forces took control of al-Sarkha in the morning before moving in to recapture the ancient Christian town of Maalula. (Photo by AFP Photo/STR)

Police and rescuers inspect a passenger bus after it rammed into a cargo truck early Wednesday, April 16, 2014 along a highway at Libmanan township, Camarines Sur province, south of Manila, Philippines. Police said at least five passengers, including a child, were killed and 15 others were injured in the accident Wednesday which came as Filipinos flock to their hometowns for the Holy Week break. (Photo by Bullit Marquez/AP Photo)

A fishing vessel swept ashore by the tsunami following the March 2011 earthquake sits abandoned on a breakwater in Namie, Fukushima Prefecture, Japan, on Monday, March 11, 2014. March 11 marks three years since Japan's deadliest earthquake in 2011, a magnitude-9 temblor that triggered a tsunami in northeastern Japan, leaving about 19,000 people dead or missing and hundreds of thousands homeless as it wiped out entire towns. (Photo by Kiyoshi Ota/Bloomberg)

This picture taken on April 13, 2014 shows a cosplay fan posing for a photo during a cosplay and comic show in Nanjing, east China's Jiangsu province. Cosplay is a social phenomenon originating in Asia in which participants wear costumes representing a character or trend. (Photo by AFP Photo)

Syrian soldiers drive a tank in al-Sarkha village, in the Qalamun mountains, northeast of Damascus, after taking control of the village from rebel fighters, on April 14, 2014. Government forces took control of al-Sarkha in the morning before moving in to recapture the ancient Christian town of Maalula. (Photo by AFP Photo/STR)

A Hindu devotee runs over smouldering charcoal during the ritual of Shiva Gajan at Pratapgarh village in Agartala, the capital of northeastern Indian state of Tripura, on April 14, 2014. Devotees believe that by enduring the pain, Shiva, the Hindu god of destruction, will grant their prayers. Thousands took part in the month-long festival which culminates with the worship of Shiva on the auspicious day of Chaitra Sankranti, the last day of the Bengali calendar year. (Photo by Arindam Dey/AFP Photo)

Bicycle designer Dieter “Didi” Senft poses for photographs as he presents his soccer bicycle for the Soccer World Cup in Brazil in Swiebodzin, Poland, 15 April 2014. The designer from Brandenburg has designed a bicycle incorporating a copy of the statue Christ the Redeemer in Rio de Janeiro and 72 soccer balls. There is a statue of Jesus in Swiebodzin which is six metres higher than the one on Rio de Janeiro. (Photo by Patrick Pleul/EPA)

A rebel fighter blows the seeds of a dandelion flower on April 13, 2014 in the outskirts of the village Papoulan, in Idlib province. Syrian President Bashar al-Assad said that the war that has torn Syria apart for three years and cost more than 150,000 lives is turning in the government's favour, state news agency SANA reported. (Photo by Hass News/Ali Nasser/AFP Photo)

This artist's rendering provided by NASA on Thursday, April 17, 2014 shows an Earth-sized planet dubbed Kepler-186f orbiting a star 500 light-years from Earth. Astronomers say the planet may hold water on its surface and is the best candidate yet of a habitable planet in the ongoing search for an Earth twin. (Photo by T. Pyle/AP Photo/NASA Ames/SETI Institute/JPL-Caltech)

Wearing an Iron Man costume, Max Vertin, 7, from Hastings, Neb., floats in a wind tunnel simulating free fall during a day hosted by the Make-A-Wish Foundation at SkyVenture Colorado in Lone Tree, Colo., south of Denver, on Tuesday April 15, 2014. Vertin and his two brothers have Duchenne muscular dystrophy, a rare disease which causes their muscles to slowly deteriorate. Despite his medical condition, his parents say he is a regular kid who likes the color orange, pizza, collecting bugs, and his favorite superhero, Iron Man. (Photo by Brennan Linsley/AP Photo)

Cranes wait near the buoys installed to mark the sunken 6,852-ton ferry Sewol in the water off the southern coast near Jindo, south of Seoul, South Korea, Friday, April 18, 2014. Rescuers scrambled to find hundreds of ferry passengers still missing Friday and feared dead, as fresh questions emerged about whether quicker action by the captain of the doomed ship could have saved lives. (Photo by Lee Jin-man/AP Photo)

South Korean rescue team members search for passengers aboard a ferry sinking off South Korea's southern coast, in the water off the southern coast near Jindo, south of Seoul, South Korea, Thursday, April 17, 2014. Fears rose Thursday for the fate of more than 280 passengers still missing more than 24 hours after their ferry flipped onto its side and filled with water off the southern coast of South Korea. (Photo by AP Photo/Yonhap)

The Blue Angels are seen during Thunder Over Louisville's 2014 air show in Louisville, KY, Saturday April 12, 2014. (Photo by Aaron Borton/AP Photo/The Courier-Journal)

An Indian firefighter wearing a fire proximity suit walks through a wall of flames during a demonstration of their skills for Fire Safety Week in Bhubaneswar on April 15, 2014. Fire Safety Week runs April 14-20 across India. (Photo by Asit Kumar/AFP Photo)

Masked faithfuls dressed as a devil, which is popularly known as “Talciguin”, take part in the celebration of an ancient local tradition marking the start of Holy Week in Texistepeque, some 52 miles west of San Salvador, on April 14, 2014. Talciguines lash Catholic faithfuls to cleanse their sins. (Photo by Jose Cabezas/AFP Photo)

Afghan worker prepares candies at a factory in Herat, Afghanistan, 16 April 2014. The economy of Afghanistan has improved significantly since 2002 due to the induction of billions of dollars in international aid and investments. The recent improvement is also due to remarkable progress in agricultural production especially Grapes, Pomegranates, Apricots, melons and superior Potatoes. (Photo by Jalil Rezayee/EPA)

Masked pro-Russian gunmen attack a photojournalist near combat vehicles flying a Russian flag, in downtown of Slovyansk on Wednesday, April 16, 2014. The troops on those vehicles wore green camouflage uniforms, had automatic weapons and grenade launchers and at least one had the St. George ribbon attached to his uniform, which has become a symbol of the pro-Russian insurgency in eastern Ukraine. (Photo by Efrem Lukatsky/AP Photo)

Pro-Russian activists block a collumn of Ukrainian men riding on Armoured Personnel Carriers in the eastern Ukrainian city of Kramatorsk on April 16, 2014. Ukraine's security service said on April 16 it had intercepted communications showing that Russian commanders in the separatist east had issued pro-Kremlin militants “shoot-to-kill” orders after Kiev launched an operation to oust them. (Photo by Anatoliy Stepanov/AFP Photo)

A boy dressed in a military costume salutes toward the camera during an event marking President Nicolas Maduro's first year in office in Caracas, Venezuela, Tuesday, April 15, 2014. Maduro took over leadership of Hugo Chavez's political movement following the leader's death from cancer and went on to win elections soon after in April 2013. (Photo by Ramon Espinosa/AP Photo)

Olivia Savarino, center, hugs Christelle Pierre-Louis, left, as Callie Benjamin, right, looks on near the finish line of the Boston Marathon during ceremonies on Boylston Street, Tuesday, April 15, 2014, in Boston. Savarino and Benjamin were working at the Forum restaurant when a bomb went off in front of the building on April 15, 2013. (Photo by Steven Senne/AP Photo)

A man carries a body at a site hit by what activists said was a warplanes attack by forces loyal to Syrian President Bashar al-Assad in the Duma neighbourhood of Damascus April 13, 2014. On Sunday, opposition activists said at least 20 people were killed when warplanes attacked Douma, a town near Damascus. (Photo by Bassam Khabieh/Reuters)

An employee walks past TV screens in a shop in Moscow, on April 17, 2014, during the broadcast of President Vladimir Putin's televised question and answer session with the nation. Putin accused today Ukraine's new authorities of driving the country towards the abyss but said that dialogue was the only way out of the intensifying crisis. (Photo by Alexander Nemenov/AFP Photo)

Algerian police arrest a protestor from the Barakat movement (meaning in Algerian Arabic “That's enough”), as they demonstrate in Algiers on April 16, 2014 against Algeria's current President Bouteflika Abdelaziz running for a fourth term in the presidential elections. More than 260,000 police have deployed across the country to guarantee security in the 50,000 polling booths set up to accommodate the 23 million Algerians eligible to vote in the presidential race, which is being contest by six candidates. (Photo by Farouk Batiche/AFP Photo)

This NASA Hubble Space Telescope image released April 14, 2014 shows what appears to be a bright blue tadpole swimming through the blackness of space. Known as IRAS 20324+4057, but dubbed “the Tadpole”, this clump of gas and dust has given birth to a bright, “protostar”, one of the earliest steps in building a star. There are actually multiple protostars within this tadpole's “head”, but the glowing yellow one in this image is the most luminous and massive. When this protostar has gathered together enough mass from its surroundings, it will eventually emerge as a fully-fledged young star. The intense blue glow is caused by nearby stars firing ultraviolet radiation at IRAS 20324+4057, which also sculpts its tail into a long, wiggly shape. In total, this clump spans roughly a light-year from head to tail-tip, and contains gas weighing almost four times the mass of the sun. (Photo by AFP Photo/NASA/JPL-Caltech/ESA/Hubble Heritage Team)

US President Barack Obama makes a face for an audience member, Nancy Loubin, using her phone to take pictures as he walks the rope line during an event for the Wounded Warrior Project's Soldier Ride on the South Lawn of the White House in Washington, DC, April 17, 2014. (Photo by Jim Watson/AFP Photo)

British Olympic athlete Mo Farah poses with two waxworks, one of which will be displayed in London and the other in Blackpool at Madame Tussauds, in London April 14, 2014. (Photo by Olivia Harris/Reuters)

A penitent holds the hood of another on their way to a church before taking part in the procession of San Gonzalo brotherhood during Holy Week in the Andalusian capital of Seville, southern Spain, April 14, 2014. Holy Week is celebrated in many Christian traditions during the week before Easter. (Photo by Marcelo del Pozo/Reuters)

A protester hangs an image of Jesus Christ with a gas mask on a car during a march of remembrance for those fallen during the protests in Venezuela, Tuesday, April. 15, 2014. As Venezuelan opposition is resuming negotiations with the government doubts are arising that the talks will produce a breakthrough. (Photo by Ramon Espinosa/AP Photo)