June 14 (UPI) -- Russia and Ukraine exchanged an unreported number of prisoners of war on Saturday during the fourth such exchange during the week. Ukraine also received the bodies of 1,200 dead civilians and military personnel from Russia. The bodies are in addition to 2,412 that were sent to Ukraine on Wednesday and Friday and are being released per agreements reached during recent negotiations in Istanbul, the Kyiv Independent reported. "The remains will now undergo forensic examination and