U.S. Secretary of State John Kerry spoke in favor of a more active crackdown on the Islamic State (ISIL) and Jabhat al-Nusra terrorist groups (both outlawed in Russia) during his meeting with Russian President Vladimir Putin in Moscow on Thursday, the U.S. State Department said.

At the same time, Kerry said that "diplomatic efforts could not continue indefinitely," the State Department said.

Kerry also "urged an acceleration of negotiations on implementation of the Minsk agreements, especially on the security elements," it said.