US Secretary of State John Kerry said he and his Russian counterpart Sergey Lavrov spoke Friday about a "strong" United Nations Security Council resolution on ridding Syria of chemical weapons.

US Secretary of State John Kerry said he and his Russian counterpart Sergey Lavrov spoke Friday about a "strong" United Nations Security Council resolution on ridding Syria of chemical weapons. 

The two top diplomats are in daily contact on the matter and sealed a deal in Geneva last weekend aimed at dismantling Syria chemical weapons.

While welcoming his Dutch counterpart Frans Timmermans to the State Department, Kerry told reporters he had had a fairly long phone conversation with Lavrov earlier in the day.

"We talked about the cooperation which we both agreed to continue to provide, moving not only towards the adoption of the OPCW (Organization for the Prohibition of Chemical Weapons) rules and regulations, but also a resolution that is firm and strong within the United Nations," Kerry said.

"We will continue to work on that," he added.

The world's chemical weapons watchdog, which enforces the Chemical Weapons Convention that Syria has applied to join, has repeatedly postponed a meeting of its Executive Council to discuss the practicalities of how to dispose of Syria's chemical weapons.

A new date for the meeting has not yet been set.

Diplomatic sources said that a draft text to be discussed at the meeting had not yet been agreed upon by the United States and Russia.