"During the day, 12 cases of violations by the coalition of collision avoidance protocols signed on December 9, 2019, following the coalition's drone flights that were not coordinated with the Russian side," the statement said, adding that in the Al-Tanf area, 13 violations were monitored per day, by three pairs of F-35 fighters, a pair of F-16 fighter jets and a pair of Rafale fighters, in addition to three coalition MQ-1C multipurpose drones. Earlier, Russia expressed concern about the violation of the international coalition's protocols to avoid clash in Syria.Brigadier General Oleg Gorynov, deputy head of the Russian Center for Reconciliation of the Warring Parties in Syria, stated that Russia is concerned about systematic violations of the non-conflict protocols related to the flights of "coalition" drones over northern Syria.