"A Russian submarine went to the bottom of the Black Sea," the defence ministry said in a post on X, naming the vessel as the B-237 Rostov-on-Don attack submarine.
The military's general staff said the attack on Sevastopol port also significantly damaged four launchers of the S-400 anti-aircraft "Triumf" defence system.
There was no immediate comment by Russia on the Sevastopol attack.
A russian submarine went to the bottom of the Black Sea.— Defense of Ukraine (@DefenceU) Ukrainian defense forces successfully attacked the B-237 "Rostov-na-Donu" attack submarine in Sevastopol's port. As a result of the attack, the submarine sank.Great work, warriors. The Black Sea fish will enjoy their new… pic.twitter.com/KzbaZATcFRAugust 3, 2024
In other overnight attacks, the military said it hit an ammunition depot at Morozovsk airfield where Russian forces stored guided aerial bombs among other equipment and a number of oil depots and fuel storage facilities.
"Russian combat aviation must be destroyed wherever it is, by all effective means. It is also quite fair to strike at Russian airfields. And we need this joint solution with our partners - a security solution," Ukrainian President Volodymyr Zelenskiy wrote on the Telegram messaging app.
The Ukrainian president has repeatedly called on his allies for permission to use their weapons for long-range attacks on Russia, in addition to striking military targets close to the border.
Russian combat aviation must be destroyed wherever it is, using any effective means. It is also quite fair to strike Russian airfields. We need this joint decision with our partners—a security decision. — Volodymyr Zelenskyy / Володимир Зеленський (@ZelenskyyUa) This is the only way to ensure protection for our people. This week alone,… pic.twitter.com/hxB11vFbnOAugust 3, 2024
He said on Saturday that Russian forces had used more than 600 guided aerial bombs to attack Ukraine in the past week.
The attack on oil depots and fuel and lubricant storage facilities in Belgorod, Kursk and Rostov regions set fire to at least two oil tanks, according to the Ukrainian military report.
In Russia, local officials reported that tanks at a fuel storage depot in the Kamensky district of Rostov region caught fire as a result of a drone attack.
The regional governor of Belgorod also said Ukraine-launched drones caused a fire at an oil storage depot there, adding that the fire was extinguished and no one was injured.
Ukraine has dramatically stepped up its use of long-range drones this year to attack Russian oil facilities, attempting to damage sites fuelling Russian forces and the country's economy in its 29-month-old invasion.
