Ukraine on Saturday said dozens including senior Russian navy commanders died or were injured when it staged a missile attack on Moscow’s Black Sea Fleet headquarters in the Crimean port of Sevastopol a day earlier.

Ukraine struck the headquarters on Friday, sparking a huge fire.

“The details of the attack will be revealed as soon as possible and the result is dozens of dead and wounded occupants, including senior fleet commanders,” the Ukrainian army said.

It said the strike happened when “a meeting of the Russian navy’s leadership” was going on.