Ukraine troops begin to surrender in Mariupol

A bus carrying wounded service members of Ukrainian forces from the besieged Azovstal steel mill in Mariupol drives under escort of the pro-Russian military in the course of Ukraine-Russia conflict upon arrival in Novoazovsk, Ukraine May 16. (Image: Reuters)

A wounded service member of Ukrainian forces from the besieged Azovstal steel mill in Mariupol is transported on a stretcher out of a bus, which arrived under escort of the pro-Russian military in the course of Ukraine-Russia conflict in Novoazovsk, Ukraine May 16. (Image: Reuters)

A bus carrying service members of Ukrainian forces from the besieged Azovstal steel mill drives away under escort of the pro-Russian military in the course of Ukraine-Russia conflict in Mariupol, Ukraine May 16. (Image: Reuters)

Service members of pro-Russian troops wait before the expected evacuation of wounded Ukrainian soldiers from the besieged Azovstal steel mill in the course of Ukraine-Russia conflict in Mariupol, Ukraine May 16. (Image: Reuters)

A Russian service member waits atop an armoured vehicle before the expected evacuation of wounded Ukrainian soldiers from the besieged Azovstal steel mill in the course of Ukraine-Russia conflict in Mariupol, Ukraine May 16. (Image: Reuters)

A view shows a bus carrying service members of Ukrainian forces from the besieged Azovstal steel mill in Mariupol, which arrived under escort of the pro-Russian military in the course of Ukraine-Russia conflict in Novoazovsk, Ukraine May 16. (Image: Reuters)

Service members of pro-Russian troops stand guard on a road before the expected evacuation of wounded Ukrainian soldiers from the besieged Azovstal steel mill in the course of Ukraine-Russia conflict in Mariupol, Ukraine May 16. (Image: Reuters)

A bus carrying service members of Ukrainian forces from the besieged Azovstal steel mill drives away under escort of the pro-Russian military in the course of Ukraine-Russia conflict in Mariupol, Ukraine May 16. (Image: Reuters)