Haitians push to cross the border between the Dominican Republic and Haiti in Malpasse, Haiti March 12, 2015.Haitians regularly cross to the Dominican Republic every Monday and Thursday to buy goods. (Photo by Andres Martinez Casares/Reuters)

India's fans cheer before the Cricket World Cup match between Zimbabwe and India, at Eden Park in Auckland, March 14, 2015. (Photo by Nigel Marple/Reuters)

A Bangladesh cricket team supporter, with her face painted like a tiger and in the colours of the national flag, is seen before their Cricket World Cup quarter-final match against India in Melbourne March 19, 2015. (Photo by Hamish Blair/Reuters)

A fan of India's cricket team blows into a sea shell during their Cricket World Cup quarter final match against Bangladesh in Melbourne, March 19, 2015. (Photo by Brandon Malone/Reuters)

A model poses while waiting backstage before Sangue Novo show during Lisbon Fashion Week March 13, 2015. (Photo by Rafael Marchante/Reuters)

A model is prepared backstage before Sangue Novo show during Lisbon Fashion Week March 13, 2015. (Photo by Rafael Marchante/Reuters)

A visitor poses for a portrait during Lisbon Fashion Week March 13, 2015. (Photo by Rafael Marchante/Reuters)

Local residents walk past debris as a wave breaks nearby in Port Vila, the capital city of the Pacific island nation of Vanuatu March 14, 2015. Winds of up to 250 kilometers an hour (155 mph) ripped metal roofs off houses and downed trees in Vanuatu on Saturday, as relief agencies braced for a major rescue operation and unconfirmed reports said dozens had already died. Witnesses described sea surges of up to eight meters (yards) and flooding throughout the capital Port Vila after the category 5 cyclone named Pam hit the country late on Friday. (Photo by Reuters/UNICEF Pacific)

A child climbs on a block of earth under a uprooted tree near Port Vila on March 19, 2015 after Severe Tropical Cyclone Pam hit the Pacific nation of Vanuatu. Vanuatu has hit out at aid groups swarming the cyclone-ravaged Pacific nation over a lack of coordination, which it said cost precious time getting help to those in need, while warning food will run out in a week. (Photo by Fred Payet/AFP Photo)

Crew members of the USS Fort Worth (LCS 3) check a MQ-8B Fire Scout Unmanned Aerial System, during a media tour on board, at a naval port in Busan March 14, 2015. USS Fort Worth is the first US Navy Littoral Combat Ship to visit South Korea and is participating in the annual Foal Eagle exercise with the Republic of Korea navy. (Photo by Jung Yeon-Je/Reuters)

Red Bull Formula One driver Daniel Ricciardo of Australia drives past a plover bird during the third practice session of the Australian F1 Grand Prix at the Albert Park circuit in Melbourne March 14, 2015. (Photo by Jason Reed/Reuters)

A man shows a photo of Ahmed Ali Abdullah Saleh, the son of Yemen's former President Ali Abdullah Saleh, pasted on his dagger in Sanaa March 14, 2015. (Photo by Mohamed al-Sayaghi/Reuters)

Abraham Levy of Mexico rows his boat named “Cascarita” as he arrives at the coast of Cancun March 14, 2015. Levy, who calls himself a “self-propelled explorer”, started out from the port of Palos in Spain on October 21, 2014, and travelled 9,000 km (5,592 miles) in 106 days to reach Cancun, aiming to raise awareness about preserving the Mesoamerican reef, in association with international organisation The Nature Conservancy. (Photo by Victor Ruiz Garcia/Reuters)

Actress and comedian Natasha Leggero poses during the Comedy Central Roast of Justin Bieber at Sony Studios in Culver City, California March 14, 2015. (Photo by Kevork Djansezian/Reuters)

Model Chrissy Teigen poses during the Comedy Central Roast of Justin Bieber at Sony Studios in Culver City, California March 14, 2015. (Photo by Kevork Djansezian/Reuters)

Comedian Jeff Ross (C) poses during the Comedy Central Roast of Justin Bieber at Sony Studios in Culver City, California March 14, 2015. (Photo by Kevork Djansezian/Reuters)

Enraged Christians lynch a man they suspected of being involved in a suicide attack on a church in Lahore March 15, 2015. Bombs outside two churches in the Pakistani city of Lahore killed 14 people and wounded nearly 80 during Sunday services, and witnesses said quick action by a security guard prevented many more deaths. A Pakistani Taliban splinter group claimed responsibility. (Photo by Mohsin Raza/Reuters)

A woman from the Christian community prays next to pictures of victims of the suicide bombings in Lahore, during a protest in Islamabad March 16, 2015. The suicide bombings outside two churches in Lahore killed 14 people and wounded nearly 80 others during services on Sunday in attacks claimed by a faction of the Pakistani Taliban. (Photo by Faisal Mahmood/Reuters)

Pakistani protesters throw rocks during clashes with police to condemn Sunday's suicide bombings that struck two churches, in Lahore, Pakistan, Monday, March 16, 2015. Pakistani police fired tear gas on Monday after Christian protesters clashed with police in the eastern city of Lahore, a day after Taliban bombers killed more than a dozen people in suicide attacks on two churches in the city. (Photo by K. M. Chaudary/AP Photo)

Fighters from Misrata fire weapons at Islamic State militants near Sirte March 15, 2015. Militants loyal to Islamic State, the group which has seized much of Iraq and Syria, have established a larger presence in central Libya in recent weeks. Islamic State, which analysts say is splintered into smaller factions in Libya, has sought to exploit turmoil in the major oil producer where two rival governments and their respective allies fight for power. (Photo by Goran Tomasevic/Reuters)

An artist shows her hands after working on a wall as part of a campaign to call for coexistence and the renouncement of violence through the painting of walls in Sanaa, Yemen March 15, 2015. (Photo by Mohamed al-Sayaghi/Reuters)

Members of the winning South Korean team Shim Suk Hee, Noh Do Hee, Choi Minjeong and Kim Alang (L-R) look on after finishing during the women's 3000m relay final at the ISU World Short Track Speed Skating Championships in Moscow March 15, 2015. (Photo by Grigory Dukor/Reuters)

Tao Jiaying of China (L) falls next to her compatriot Han Yutong (C) and Noh Do Hee of South Korea (R) as they compete during the women's 3000m relay final at the ISU World Short Track Speed Skating Championships in Moscow March 15, 2015. (Photo by Grigory Dukor/Reuters)

Riders compete on the frozen Yenisei River during the 45th Ice Derby amateur horse race near the settlement of Novosyolovo, south of the Siberian city of Krasnoyarsk March 14, 2015. The Ice Derby has been held in Novosyolovo annually at the end of each winter since 1969, drawing participants from the entire region. (Photo by Ilya Naymushin/Reuters)

Calgary-based singer Kiesa Rae Ellestad, better known as Kiesza, poses with Royal Canadian Mounted Police officers as she arrives at the 2015 Juno Awards in Hamilton, Ontario, March 15, 2015. (Photo by Mark Blinch/Reuters)

The bell tower of Novodevichy monastery, a UNESCO World Heritage site, burns as it is engulfed in flames in Moscow March 15, 2015. (Photo by Tatyana Makeyeva/Reuters)

Firefighters battle with a fire in Novodevichy Convent's bell tower in Moscow, Russia, 15 March 2015. The Novodevichy Convent which was built in 1524 is a UNESCO World Heritage site. (Photo by Yuri Kochetkov/EPA)

Supporters of Venezuela's President Nicolas Maduro hold a placard depicting U.S. President Barack Obama during a rally against imperialism, in Caracas March 15, 2015. Venezuela's parliament granted President Maduro decree powers on Sunday for the rest of 2015 in a move he says is to defend the country from U.S. meddling but opponents decry as evidence of autocracy. The placard reads, “Yankee go home”. (Photo by Carlos Garcia Rawlins/Reuters)

U.S. Dollar and Euro banknotes on a pair of scales in Vienna are seen in this March 11, 2015 file photo. The euro's slide toward parity with the dollar will provide a much-needed boost for European companies this year and force U.S. rivals to adapt their businesses or risk losing market share. (Photo by Heinz-Peter Bader/Reuters)

A woman practices flyboarding at the Xiloa Lagoon in Managua March 15, 2015. A team of young Mexicans are conducting demonstrations of the extreme sport flyboarding in different beaches in Nicaragua. (Photo by Oswaldo Rivas/Reuters)

London mayor Boris Johnson gestures as he plants waterlilies at the Royal Botanic Gardens in Kew, west London March 16, 2015. (Photo by Stefan Wermuth/Reuters)

Model Bianca Balti (2nd L) joins other models as they present creations from the Dolce & Gabbana Autumn/Winter 2015/16 collection during Milan Fashion Week in this March 1, 2015 file photo. British singer Elton John slammed Italian fashion duo Domenico Dolce and Stefano Gabbana on Sunday and called for a boycott of their brand after the pair championed “traditional” families. John, who has used his fame to speak out for lesbian, gay, bisexual and transgender equality, chided the designers for criticising fertility treatment and same-s*x parenting in an interview. (Photo by Alessandro Bianchi/Reuters)

Members of the Libyan pro-government forces, who are backed by the locals, take a break during street clashes with the Shura Council of Libyan Revolutionaries, an alliance of former anti-Gaddafi rebels who have joined forces with the Islamist group Ansar al-Sharia, in Benghazi March 16, 2015. (Photo by Esam Omran Al-Fetori/Reuters)

Members of the Libyan pro-government forces, backed by the locals, ride in a military vehicle during clashes in the streets with the Shura Council of Libyan Revolutionaries, an alliance of former anti-Gaddafi rebels who have joined forces with Islamist group Ansar al-Sharia, in Benghazi March 16, 2015. (Photo by Esam Omran Al-Fetori/Reuters)