This is what AFP reported:
Pro-Russian crowds seized two Ukrainian warships Thursday and Ukraine said its troops were being threatened in Crimea as the European Union considered new sanctions against Russia for its annexation of the Black Sea peninsula. Tensions in the region remained high despite the release of a Ukrainian naval commander held by pro-Russian forces.
Shots were fired but there were no casualties as the Ukrainian corvette Khmelnitsky was seized in Sevastopol, according to an AP photographer at the scene. Another ship, the Lutsk, was also surrounded by pro-Russian forces. The Defense Ministry had no immediate information on the incidents.
Perhaps considering Ukraine said it had pulled its troops from Crimea, they should also have pulled their ships, although it is unclear just where they would pull them to. Regardless, this is what the actual storming of the ships looked like.