A passenger on Emirates Airlines, Mr Dada Isaac Olusola, on Thursday slumped and died at the Murtala Muhammed International Airport, Lagos.
Late Olusola just returned from the US with his wife to Nigeria and was still at the airport when the incident occurred.
An eyewitness account said that the deceased, identified as Dada Isaac Olusola with passport number A04501199, had slumped on arrival at the screening point where he was quickly attended to and given medication by airport clinical personnel.
The passenger was accompanied by his wife and members of the Lions Club.
His remains was later taken away by his wife to the morgue.
He was said to have died of cardiac arrest.
Medics, who monitored his condition, said the passenger slumped around 4.18pm when he arrived and was pronounced dead at 5.34pm.