WASHINGTON (AP) — The House endorsed a resolution Tuesday that suggests the Russian government might have had a hand in the 2006 radiation poisoning death of a Russian dissident.

The resolution asks President Bush and Secretary of State Condoleezza Rice to press Russian officials to cooperate with British investigators probing the death of Alexander Litvinenko, a former KGB agent who fled to Britain in 2000 and took British citizenship. He died in November 2006 from radioactive polonium-210 he had ingested.