A tribal Fulani man milks a cow at a local milk collecting centre in Dangwala Karfi village on the outskirts of Nigeria's northern city of Kano January 19, 2016. (Photo by Akintunde Akinleye/Reuters)

Members of the Gafatar sect walk in the rain as they evacuate their compound, which was later burned down by local villagers, in Antibar village, Mempawah Regency, Indonesia West Kalimantan Province, January 19, 2016 in this photo taken by Antara Foto. Local authorities and police moved the sect members to an army barracks located some 70 km (43 miles) away from Antibar for their safety following recent disputes between the sect and the villagers, Antara said on Tuesday. (Photo by Jessica Helena Wuysang/Reuters/Antara Foto)

An climber ascends a silo covered in ice in Cedar Falls, Iowa, United States, January 17, 2016. The owners have connected hoses to the top of the silo and spray it with water in winter months to freeze the exterior for climbing. (Photo by Jim Young/Reuters)

Models present makeup creations during a show by Maybelline New York at the Berlin Fashion Week Autumn/Winter 2016 in Berlin, Germany, January 18, 2016. (Photo by Fabrizio Bensch/Reuters)

A man eats a meal under his tree house, which acts as a shelter from wild elephants, in Gwe Cho village, Shwe Taung Yan township Ayeyarwady division January 18, 2016. Wild elephants are driving villagers in a Myanmar township to seek refuge while the animals storm their rice paddies, in Ayeyarwady in the Delta region, West of Yangon. (Photo by Soe Zeya Tun/Reuters)

A woman takes a dip in a font on the eve of the Orthodox Epiphany in central Moscow, Russia, January 18, 2016. Orthodox believers mark Epiphany on January 19 by immersing themselves in icy waters regardless of the weather. (Photo by Sergei Karpukhin/Reuters)

Serena Williams of the U.S. serves during her first round match against Italy's Camila Giorgi at the Australian Open tennis tournament at Melbourne Park, Australia, January 18, 2016. (Photo by Jason O'Brien/Reuters)

Confiscated weapons hang from a magnet before being destroyed at a foundry in Santiago, Chile, January 18, 2016. Nearly 13,000 firearms were destroyed as part of a government arms control program. (Photo by Ivan Alvarado/Reuters)