Steven Seagal has joined fellow actor Gérard Depardieu on a blacklist of cultural figures barred from entering Ukraine.

The Under Siege star, 65, whose grandmother was from Vladivostok, has been branded a national security threat after he was granted Russian citizenship last year and voiced support for Russia’s seizure of Crimea.

Ukraine’s security service said it had banned him from the country for five years, according to news site Apostrophe, which published a letter from the service saying he had “committed socially dangerous actions … that contradict the interests of maintaining Ukraine’s security”.

The star of Exit Wounds was already on a proposed blacklist after he said Russia’s annexation of Crimea from Ukraine in 2014 was “very reasonable” and he later performed with his blues band at a concert in Crimea supporting  separatists.