The Ukrainian military says it carried out an attack on the Russian Navy's Black Sea Fleet headquarters in Crimea during a meeting of senior leadership of the fleet.

The General Staff of the Ukrainian Armed Forces announced on Saturday that its air force attacked the command headquarters in the military port city of Sevastopol the day before. It also struck Russia's anti-aircraft missile systems and military equipment over the past day.

Ukraine's Special Operations Forces wrote in a social media post that they made it possible to "timely and precisely" strike the headquarters during a meeting of the leadership. They added that the attack left dozens dead and wounded, including the senior leadership.

British public broadcaster BBC cited a source from the Ukrainian Air Force as saying the attack was carried out using cruise missiles supplied by Britain and France.

Since Russia unilaterally annexed Crimea in 2014, the peninsula has served as a strategic hub for the country as the home port of the Black Sea Fleet. It also represents a symbol of power to President Vladimir Putin.

Ukraine's National Security and Defense Council Secretary Oleksiy Danilov suggested the Ukrainians will step up attacks on Russian military facilities in Crimea.

On social media on Friday, Danilov said Russia's Black Sea Fleet has two options for its future -- "voluntary or forced self-neutralization."