The Ukrainian Defense Ministry's Main Intelligence Directorate (HUR) has said its naval drones destroyed two Russian "Tunets" boats in Crimea. "On May 30, HUR's special unit Group 13, with the help of Ukrainian Magura V5 maritime attack drones, once again successfully attacked the ship depot of the aggressor state of Russia in the temporarily occupied Crimea," HUR said in a statement, adding that Russian troops used several attack helicopters to in an unsuccessful attempt to repel the attack. The Tunets is an 8.8-meter-long and 2.5-meter wide diesel boat mainly used by Russian border guards. To read the original story by RFE/RL's Ukrainian Service, click here.