A masked Burundian protester faces soldiers in front of a burning barricade during an anti-government demonstration against President Pierre Nkurunziza's bid for a third term in the capital Bujumbura, Burundi, 25 May 2015. Street protests continued on 25 May as the United Nations Secretary-General Ban Ki-moon condemned the killing of the leader of the oppsition party Union for Peace and Development (UPD) Zedi Feruzi who opposed Nkurunziza's bid. (Photo by Dai Kurokawa/EPA)

Revellers pose during the 24th Street Parade dance music event in Zurich, August 29, 2015. (Photo by Arnd Wiegmann/Reuters)

Participants lay down on a street covered by coloured powder during the annual Bangkok Color Run in Bangkok, Thailand April 1, 2017. (Photo by Athit Perawongmetha/Reuters)

A rusty revolver is seen near the body of a man, who police said was killed by police operatives, and two sachets of “Shabu” or methampethamine chloride were found on his pockets in Manila, Philippines August 17, 2017. (Photo by Erik De Castro/Reuters)

Vocalist Laila Skovmand, a musician with Danish company Between Music, plays underwater in a tank during a rehearsal ahead of their UK premiere concert Aquasonic at the Tramway in Glasgow on Ocrober 25, 2017. (Photo by Robert Perry/PA Images)

Gremio fans celebrate after their team won the Copa Libertadores final match at the Arena do Gremio in Porto Alegre, Brazil on November 29, 2017. (Photo by Diego Vara/Reuters)

Nur Elita, an Acehnese woman, screams during caning as part of her sentence in the courtyard of Baiturrahman mosque in Banda Aceh, Indonesia's Aceh province December 28, 2015. Nur Elita received five strokes of the cane for having pre-marital s*x with her boyfriend, according to local media. Aceh is the only province in Indonesia, the world's most populous Muslim country, where Islamic law is implemented, according to local media. (Photo by Junaidi Hanafiah/Reuters)

People participate in a winter fishing event in Changchun, Jilin province, China, December 25, 2016. Picture taken December 25, 2016. (Photo by Reuters/Stringer)