Jamaica police have set up an international hotline and appealed to potential witnesses to come forward with any information they have on Pakistan cricket coach Bob Woolmer's murder.

Deputy Commissioner of Police Mark Shields said the investigators were working on identifying all those who stayed in Pegasus hotel on the day Woolmer was murdered and also two days prior to that and reach them for clues.

"What I need to do is to identify everybody in the hotel from Friday through to Sunday when Bob's body was found, in an effort to establish everybody's movements during that period of time," Shields told reporters.

"The important thing is that we get to those people and give them an opportunity to come forward and talk to us. Nothing can be overlooked in a case like this," he said.

Shields said the witnesses could either call the international hotline (+1-876-927-5000) or contact their local police.

"You can call the number 24/7 to give information. If you don't want to call internationally, call your local police if you're now back at home in your own country," he said.