The Pakistan Cricket Board have announced the findings of the post mortem on coach Bob Woolmer have proved inconclusive.
Woolmer died after the team suffered a shock World Cup defeat to Ireland which ended their chances of reaching the Super Eight stage in the West Indies.
Following Woolmer's death, the players have vowed to go ahead with their final group game on Wednesday, when they will attempt to restore some pride by beating Zimbabwe at Sabina Park, Jamaica.
It was revealed that further tests will now be carried out with the pathologist awaiting results from toxicology and histology tests.
These will be done as a matter of urgency and the results could be known within 24 hours.
Woolmer's body has now been moved to a funeral parlour and arrangements have been made to take his body to South Africa via London, although that will not happen until conclusive results have been found.