The United Nations Security Council convenes on Tuesday to decide the future of its observer mission in Syria.

The United Nations Security Council convenes on Tuesday to decide the future of its observer mission in Syria.

The mission's leader Major General Robert Mood was to brief the Security Council.
On Saturday, Mood announced the suspension of the mission's patrols due to the violence.

The UN observers were sent to Syria in April to monitor the implementation of a UN- and Arab League-backed peace plan. The plan was never implemented by the two sides.

In a joint statement issued on the sidelines of the G-20 summit in Mexico, U.S. President Barack Obama and Russian President Vladimir Putin have called for "an immediate cessation of all violence" in Syria.

However, there was no sign the two UN Security Council powers had agreed on a plan aimed at ending the conflict.

Obama told reporters after the meeting that he and Putin agreed "that a political process has to be created to prevent civil war and the kind of horrific deaths that we've seen over the last several weeks.

The US President said he and his Russian counterpart had "pledged to work with other international actors, including the United Nations, Kofi Annan, and all interested parties, in trying to find a resolution to this problem."

Putin said they had found "many common points on all the issues."