A post mortem on a 24 year-old man who died on board an Aer Lingus flight to Dublin will determine whether he may have taken a substance that caused him to die.
The Brazilian man became agitated and bit another passenger on the flight from Lisbon yesterday, before suffering a seizure, and dying.
The flight was then diverted to Cork.
Gardai are continuing to question a 44 year-old woman who was travelling with the 24 year-old, on suspicion of drug trafficking.
John Leonard was on the flight.
