Kingston, Jamaica ? Authorities said Thursday that Pakistan’s cricket coach was strangled in his hotel room and they were opening a murder investigation, adding to the intrigue surrounding an incident that has caused a sensation in the proper world of cricket.

Bob Wool-mer, 58, was found unconscious in his blood- and vomit-splattered hotel room in Jamaica on Sunday, a day after his team’s humiliating upset loss to Ireland on St. Patrick’s Day sealed Pakistan’s ouster from the tournament. He was later declared dead at a hospital.

Police Commissioner Lucius Thomas said in a statement that the pathologist report found Woolmer’s death was due to “asphyxia as a result of manual strangulation.” Police said they were reviewing security cameras at the Jamaica Pegasus Hotel and urging witnesses to come forward.

Mark Shields, the deputy police commissioner, said police were also investigating if more than one person could have been involved.

“Bob was a large man. It would have taken some significant force to subdue him,” he told a news conference Thursday night. “We don’t know at this stage how many people were in the room – it could be one or more people that were involved in this murder.”

Shields declined to comment when asked about local media reports describing the condition of Woolmer’s body. “There are some issues surrounding marks on his body, but for the moment I would rather we stick to the cause of death, which is asphyxia,” he said.

No arrests have been made and there were no suspects in the case, police said.

Team spokesman Pervez Jamil Mir said the players were shocked by the news Woolmer had been killed. Earlier in the day, Pakistan’s cricketers were fingerprinted and interviewed by police, then allowed to travel across the island to Montego Bay.

It was not clear if the team would be asked to remain in Jamaica pending the investigation, but Shields said the players have pledged their full cooperation.

Assistant Police Commissioner Les Green said the team was fingerprinted as part of standard procedure “to eliminate persons from fingerprints which would be found in the room.”

“After a thorough investigation, fingerprints not belonging to Mr. Woolmer were found in the room,” he told The Associated Press.