British Prime Minister David Cameron on Thursday expressed concern over delays with an ongoing international program to ship chemical weapons materials out of Syria.
"There do seem to be now indications that the program is slowing and that not all the information necessary is forthcoming," Cameron was quoted by Reuters news service as telling parliament.
The U.N. Security Council held closed-door consultations on the matter on Thursday.
The Organization for the Prohibition of Chemical Weapons had planned for Syria to ship about 1,300 tons of chemicals out of the country by Wednesday. The Syrian government failed to keep the deadline.
"Britain will continue to put pressure on all parties to make sure the chemical weapons are produced and destroyed," Cameron said, according to the report.
U.N. Secretary General Ban Ki Moon said Thursday in Sochi, Russia that he was confident Syria would meet a June 30 deadline to eliminate its entire chemical weapons.
"About these chemical weapons, I believe the process has been moving on rather smoothly even though there have been some delays," Ban said.