A 20-year-old tourist found dead in a swimming pool at a club on a Greek island died when a burst blood vessel flooded his lungs with blood.
The incident took place in Laganas on the island of Zakynthos, where the young man was on holiday with pals, around 10pm on 2nd July.
After spotting him motionless in the pool, the owner of the club, who is also a lifeguard, immediately jumped in and gave him CPR.
However, he failed to regain consciousness.
After being taken to a hospital, medics could only confirm his death. His body was then sent to Patras for a post-mortem examination.
The autopsy has now given his cause of death as haemorrhagic pulmonary oedema - when a ruptured blood vessel causes the lungs to fill with blood - local media report.
The results of toxicological tests to determine the cause of the oedema were still pending at the time of writing.
Earlier reports identified the victim as a "British" tourist. However, local media now say he was an Irish national.
His name was still being withheld by the Greek authorities at the time of writing.
A barwoman at the club has told local media that ahead of being found in the pool, the young man was "pale and trembling".
And the club owner himself has revealed that when he gave tourist man CPR, he was "already dead, he did not spit out any water".
The investigation continues.
