In Ukraine, the International Committee of the Red Cross has begun registering hundreds of Ukrainian fighters as prisoners of war after they surrendered in Mariupol. Russia now says over 1,700 Ukrainians have surrendered since May 16, after a weeks-long standoff at the Azovstal steel plant. Russia has threatened to hold war crimes trials for some of the captured soldiers. Meanwhile, a 21-year-old Russian soldier has pleaded guilty in the first war crimes trial conducted by Ukraine since the start of the invasion. The soldier admitted to shooting dead a 62-year-old Ukrainian man in the region of Sumy.