Updated

Members of the U.N. Security Council have called on the global chemical weapons watchdog to investigate the latest allegations of the use of chlorine as a chemical weapon in Syria.

The current council president, Jordanian Ambassador Dina Kawar, spoke to reporters Thursday after a closed-door briefing by U.N. disarmament chief Angela Kane.

Kawar says "most members" of the council expressed concern about the reports in recent weeks by opposition and activists that Syrian government helicopters dropped bombs containing chlorine gas in northwestern Idlib province.

Kane told reporters the Organization for the Prohibition of Chemical Weapons has not yet started looking into the latest allegations.

The council last month approved a resolution condemning the use of toxic chemicals in Syria and threatening militarily enforced action in the case of further violations.