According to CCTV News, Leonid Slutsky, chairman of the International Affairs Committee of the State Duma of Russia (the lower house of parliament), stated in response to comments from U.S. officials that NATO's attack on Kaliningrad will lead to Russia taking countermeasures, including nuclear means. On the same day, Andrei Klishas, a member of the Defense and Security Committee of the Federation Council (the upper house of parliament), also stated that NATO must understand that any attack on Russian territory will have extremely serious consequences.