The International Cricket Council says its anti-corruption unit is investigating whether match fixing was a motive for the strangulation murder of Pakistan coach Bob Woolmer at the World Cup this week.

Woolmer was found unconscious in his hotel room Sunday and was later pronounced dead at a local hospital. His death came after Ireland knocked Pakistan out of the World Cup.

After days of speculation as to the cause of Woolmer's death, authorities said Thursday that he was strangled.

Jamaican police say they are reviewing security camera video from the hotel where the team was staying. DNA samples were also taken from Pakistani team members. Police say Woolmer's room showed no signs of forced entry, indicating he might have known his killer or killers.

International Cricket Council head Malcolm Speed said in an interview that the ICC's anti-corruption and match-fixing staff is working with Jamaican police. He said the ICC has exhaustive information about bookmakers and betters and if there is a link between the murder and match fixing, the governing body wants to deal with it.

Woolmer, a former England batsman, was South Africa's coach in the 1990s when former captain Hansie Cronje admitted taking money in a match-fixing scandal. Woolmer was never implicated.

Some information for this report provided by AP and Reuters.