The meeting "channel four" (Russia, Germany, France, Ukraine) at the level of Deputy Ministers of foreign Affairs can take place on 28 may, said a diplomatic source. "Such a Meeting is expected. Speech, most likely, is currently on 28 may, " said the source news Agency. May 13, the President's press Secretary Dmitry Peskov said that the contacts of leaders "channel four" (Russia, France, Germany and Ukraine) until not planned. Remember, the opposing parties in the Donbass in 0. 00 (1. 00 GMT) Sunday, fifteen February, declared a truce, under agreements concluded in Minsk after almost 16 hours of negotiations. The document provides for the withdrawal of all foreign armed formations, military equipment and mercenaries from the territory of Ukraine under the supervision of the OSCE