A South Sudanese doctor who runs an overcrowded hospital with a dimly-lit surgical theatre and no regular supply of general anaesthesia on Tuesday won the UN refugee agency's prestigious Nansen award.
Evan Atar Adaha's Maban hospital in the South Sudanese town of Bunj serves more than 144,000 refugees from Blue Nile state in neighbouring Sudan, UNHCR said.
The hospital's X-ray machine is broken, but Atar and his team perform nearly 60 surgeries per week in a room with just one light, with staff using "ketamine injections and spinal epidurals" instead of general anaesthesia, the agency said.
UNHCR chief Filippo Grandi said Atar's "profound humanity and selflessness" had saved thousands of lives.
Atar had previously run a hospital in Blue Nile but was forced to relocate when a conflict erupted there in 2011 between the Khartoum government and rebel fighters.
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The Nansen prize, awarded annually, is named for Norwegian polar explorer Fridtjof Nansen, who served as the first high commissioner for refugees during the failed League of Nations.
Last year's winner was Nigerian Zannah Mustapha, who helped negotiate the release of some of the girls kidnapped by Boko Haram Islamists from their school in Chibok in 2014.