Rebels claim their prisonners have been mistreated by Ukraine Pro-Russian rebels Friday claimed their prisoners had been starved and beaten after an overnight meeting in the eastern city of Konstantynivka saw 36 Ukrainians handed over for 31 on the rebel side. The 'deputy prime minister' of the Donetsk People's Republic also said he believed Kiev forces were regrouping for further violence, and the ceasefire had a 'sense of impermanence'. IMAGES AND SOUNDBITES