US Foreign Secretary John Kerry and Russian Foreign Minister Sergei Lavrov (L) attend the International Syria Support Group (ISSG) meeting in Munich, Germany, February 11, 2016, together with members of the Syrian opposition and other officials. [Photo/Agencies]

MUNICH - Major powers agreed on Friday to a plan aimed at breaking the deadlock in Syria by introducing a gradual cessation of hostilities and quick humanitarian aid with a view to creating conditions to revive peace talks, a diplomatic source said.

"We did not get a deal on the immediate end of Russian bombings, but we have a commitment to a process that if it works would change the situation," a Western diplomatic source said.