Kerry and Lavrov discuss measures to `` prevent an impeding humanitarian catastrophe '' Pro-Russian separatists to consider humanitarian cease-fire . The self-proclaimed leader of the Donetsk people 's republic said on Saturday that pro-Russian separatists would consider a humanitarian cease-fire to bring aid to civilians but they are not ready to surrender their territory and would `` fight to the death . '' The Russian Foreign Ministry said on Friday that the two countries had agreed in a telephone call about steps to "de-escalate" tensions between Ukraine and pro-Russian separatists.
Kerry and Lavrov discuss measures to `` prevent an impeding humanitarian catastrophe '' Pro-Russian separatists to consider humanitarian cease-fire . The Russian Foreign Ministry said on Friday that the two countries had agreed in a telephone call about steps to "de-escalate" tensions between Ukraine and pro-Russian separatists.