Jamaican police are to announce next week that Pakistan cricket coach Bob Woolmer [ Images ] died of natural causes and was not murdered as they had initially stated, Britain newspaper Daily Mail said on Saturday.

Citing a source close to the inquiry, the newspaper says Jamaican authorities will say they are no longer treating the death suspiciously and that the 58-year-old died of heart failure brought on by ill health and possibly diabetes.

Woolmer was found dead on the floor of his Kingston [ Images ] hotel bedroom on March 18 after Pakistan had been beaten by minnows Ireland in the World Cup, hastening their premature exit from the competition.

An initial post-mortem said the former England [ Images ] Test batsmen had died of asphyxiation but, after a review by London's [ Images ] Metropolitan Police, Jamaican officers now privately agree no third party was involved in his death, the paper said.

"Mr Woolmer was not a well man. It is now accepted that he died of natural causes," the source was quoted as saying.

The paper also quoted a colleague of investigating officer Mark Shields, Jamaica's Deputy Commissioner of Police, criticising his conduct.

"With hindsight, he should have ensured a second post-mortem was carried out. Instead of saying the death was suspicious, he rushed out a statement saying it was murder. He is going to be a laughing stock," the colleague is quoted as saying.

The paper said a news conference would be held in Kingston next week.