BEIJING - China says the ousted high-profile leader Bo Xilai, once a contender for a seat in the top leadership, has been suspended from key Communist Party positions and his wife is suspected in the murder of a British businessman.

State television said late Tuesday that Bo has been suspended from the party's 25-member Politburo on suspicion of involvement in "serious discipline violations."

CCTV says Bo's wife Gu Kailai is being investigated for intentional homicide of a British citizen, Neil Heywood, who died in November in Chongqing.

It says Gu and an orderly at Bo's home have been turned over to judicial authorities.

The report said Bo has been suspended from the party's 300-member Central Committee and will be investigated by party officials.

Bo was dismissed as Communist Party boss of the mega-city of Chongqing on March 15 shortly after his former police chief fled temporarily to a U.S. consulate, apparently to seek asylum.