Ukrainian intelligence (HUR) reported the information.
It noted that on March 23, the Ukrainian Armed Forces attacked the 13th shipyard of the Russian Black Sea Fleet in Sevastopol, where the Yamal landing ship was moored.
According to Ukraine's military intelligence, the damage to the ship is critical. It noted that a hole in the upper deck caused the ship to roll to starboard.
"The occupiers are continuously pumping water out of the damaged ship, which took part in the annexation of Crimea and was under repair from 2017 to 2023," the HUR emphasized.
The Intelligence Directorate adds that other details about the aggressor's losses as a result of a missile attack by the Security and Defense Forces of Ukraine against Russian military targets are being clarified.
On the evening of March 23, Russia announced the alleged operation of air defense in the temporarily occupied Crimea. The Ukrainian Defense Forces hit large landing ships Yamal and Azov, a communications center, and several infrastructure facilities of the Russian Black Sea Fleet in Sevastopol. Russia also reports damage to transportation infrastructure.