London ? British police have concluded that a former Russian spy was poisoned by a lethal dose of radioactive Polonium-210 added to his tea at a London hotel, British and American television stations reported Friday.

Investigators have identified the teapot believed to have contained the radioactive tea, which eventually killed Alexander Litvinenko in November, Sky News said, citing unnamed Scotland Yard officials. ABC News had a similar report, citing an unidentified official.

Police officials and a spokesman at the hotel declined to comment on the reports.

The reports also said police have identified another former Russian spy, Andrei Lugovoi, as a suspect in the murder. Sky News said British prosecutors believe they have enough evidence to charge him.