There were two attempted attacks on Syrian convoys transporting chemical weapons late last month, Syrian authorities told the international mission overseeing the removal and destruction of its toxic arsenal, according to a U.N. report on Thursday.

The monthly report to the U.N. Security Council of the joint mission of theĀ United Nationsand the Organization for the Prohibition of Chemical Weapons said the attempted attacks were on January 27. It gave no details on the location of the convoys.

“In addition, Syrian authorities indicated that ongoing military activities rendered two sites inaccessible during most of the reporting period,” the five-page report said. […]