In a telephone call to Lavrov, Kerry "urged Russia to seize the opportunity of upcoming meetings of the Trilateral Contact Group and its Working Groups to accelerate progress on implementing the Minsk agreements," signed in February, said John Kirby, a State Department spokesman, yesterday.
Moscow denies supporting the rebel campaign in any way. But it has agreed to terms that by year-end would give Kiev back control back of a 400-kilometre (250-mile) stretch of the Russia-Ukrainian frontier that the insurgents allegedly use to smuggle in weapons and tanks.
In addition to Ukraine, the top diplomats "also discussed Syria, Iran, Yemen, and the Arctic Council," Kirby added.