The British and Russian leaders have backed the resumption of peace talks aimed at ending the four-year crisis in Syria.
During a Monday phone conversation, British Premier David Cameron and Russian President Vladimir Putin “agreed that it is in the interest of both the UK and Russia to help find a solution" to the crisis in Syria, Cameron's office said in a statement.
They also called for measures “to stop the rise of ISIL" terrorist group operating in Syria and Iraq, it said.
"They agreed that their national security advisers should meet to restart talks on the Syrian conflict," the statement added.
This came as Syria’s foreign-backed opposition group, the so-called Syrian National Coalition (SNC), refused to attend talks in the Swiss city of Geneva with the United Nations special envoy to Syria in early May.