Protesters, mostly relatives, attend a rally in support of Ukrainian soldiers from the Azov Regiment who were captured by Russia in May after the fall of Mariupol, in Kyiv, Ukraine, Thursday, Aug. 4, 2022. The rally comes as U.S. officials believe Russia is working to fabricate evidence concerning last week's deadly strike on a prison housing prisoners of war in a separatist region of eastern Ukraine. (AP Photo/Efrem Lukatsky)