A planned exchange of prisoners of war between Russia and Ukraine did not happen on Saturday due to disagreements between the two sides, CNN reported.

Russia claimed that Ukraine postponed the exchange at the last minute, while Ukraine denied this, saying that a date for the exchange of prisoners and bodies of dead soldiers had not been finalised.

Ukraine described Russia's claims about the failed exchange as "dirty games." According to Russia, over 1,200 frozen Ukrainian bodies were left waiting in refrigerated trucks at an exchange point.