Contact group on Ukraine to discuss prisoner exchange on June 1

"The parties are expected to meet in Minsk, on June 1. One of the main issues addressed will be a prisoner exchange in the 'all for all' format, and amnesty for participants in the events in southeastern Ukraine," the source said. The source said a meeting between all topical subgroups will precede the work of the contact group. "Special attention will be given to the results of the work of the political and humanitarian subgroups," he said.