One of Vladmir Putin's top advisers warned the U.S. that Russia may try to take back Alaska in response to U.S. sanctions for the invasion of Ukraine.

Speaker of the State Duma Vyacheslav Volodin warned that "when [U.S. lawmakers] attempt to appropriate our assets abroad, they should be aware that we also have something to claim back" in a Monday session of the lower house of the Russian Federal Assembly, according to the Washington Examiner. The United States purchased Alaska from Russia in 1867 for $7.2 million.

Volodin's threat comes after the United States has cooperated with NATO allies to enforce international sanctions against Russian oligarchs, Newsweek reported.