U.S. Secretary of State John Kerry has accused the leaders of the self-proclaimed Donetsk (DPR) and Luhansk (LPR) People's Republics of systematically violating the ceasefire in Donbas.

Speaking in an interview with the Rossiya 24 (VGTRK) television station on Friday, Kerry said that the separatists have hardly ever ceased fire over the course of the negotiating process. Today they continue to use even heavy artillery weapons, he added.

There is a list of things that the separatists ought to do, and the American side believes that Russia is able to influence their implementation, Kerry noted.