KYIV, Dec 12 - Ukraine's special forces said on Friday they had conducted an operation alongside what they described ‍as ​a local resistance movement to ‍hit two Russian ships transporting weapons and military equipment in ​the ​Caspian sea.

They did not specify when the strike took place. A Ukrainian official said on Thursday that ‍Kyiv's drones had hit a Russian oil rig ​in the Caspian Sea ⁠for the first time, disabling the extraction of oil and gas from about 20 wells.