Special purpose units of Russia's Federal Security Service (FSB) is holding the second stage of large-scale counter-terrorism exercises in Crimea.
A total of about 2,000 servicemen are taking part in the exercise, which are being held on May 24-29.
The first stage of large-scale drills has been completed, with "saboteurs" who captured a drilling rig and 150 hostages neutralized, Sputnik reported.
The two-stage drills involve aircraft, sea vessels, armored vehicles, drones and advanced reconnaissance equipment.
