MOSCOW, Jan. 10 (Xinhua) -- The drones used in the attempted attacks on two Russian military facilities in Syria came from the area controlled by the moderate opposition, the Russian Defense Ministry said in a statement published in the Krasnaya Zvezda newspaper Wednesday.

The ministry confirmed that the drones were from the Muazar settlement in the southwestern part of the ldlib de-escalation zone controlled by the moderate opposition.

The ministry has written to the Turkish military, urging Ankara to "fulfill its obligation to ensure the end of hostile acts by the armed formations under its control" and to intensify the work on setting up observation posts in the de-escalation zone to prevent drone attacks on any targets.

In September 2017, Iran, Russia and Turkey held talks in Astana,Kazakhstan, agreeing to deploy observers in Idlib. Turkish military is currently deployed in Idlib to set up observation posts and monitor the implementation of the de-escalation zones.

Earlier in January, the Russian defense military reported that 13 drones had been used to attack two Russian military facilities in Syria, but were captured or destroyed by Russian servicemen.