Gardai are investigating the possibility that the man who died on board an Aer Lingus flight bound for Dublin yesterday may have been a drugs mule.

A number of suspicious packages were recovered during a post mortem on the body of the 24 year old Brazilian.

The post mortem was completed at Cork University Hospital this afternoon and a number of packages removed from the man's body.

These have been sent for forensic testing and Gardai investigating his death are also awaiting a toxicology report.

The 24 year old became highly agitated around an hour in yesterday's flight, had to be restrained, and subsequently had a seizure.

He was pronounced dead after the Lisbon to Dublin flight diverted to Cork airport. 

Another passenger - a woman in her forties - remains in Garda custody on suspicion of a drugs offence.

And the aircraft which Gardai had been treating as a crime scene has since been released back to Aer Lingus.