Russian military forces at the Hmeymim air base and the Tartus logistics center in Syria came under attack by what appears to have been a swarm of drones. Some thirteen small unmanned aerial vehicles (UAVs) made the attack, six of which were diverted by Russian electronic warfare systems while seven additional aircraft were dispatched by Pantsir-S1 air defense batteries.
"During the hours of darkness Russian air defense facilities made clear 13 remoted unknown small-sized air targets approaching the Russian military assets,” the Russian Defense Ministry told the TASS news agency. “Ten combat UAVs were approaching Russia’s Hmeymim air base and three more - the logistics center of Tartus."
https://www.yahoo.com/news/russia-ca...010700010.html