The Murtala Muhammed International Airport Command of the Nigeria Customs Service (NCS) has intercepted $8,065,615 at the airport.
NCS Comptroller-General, Hameed Ali, said on Tuesday at a press conference that the cash was stashed inside a car ready to be loaded into an aircraft.
Ali said the vehicle belongs to the Nigerian Aviation Handling Company (NAHCO) and that its driver and a NAHCO employee have been arrested.
The Customs boss said the money was wrapped in large brown envelopes with the names of would-be owners, adding that no bank has claimed ownership of the money since it was seized.
He did not reveal the aircraft that was meant to transport the money.
Ali said all travellers in and out of Nigeria must declare any physical cash in excess of $10,000 or the equivalent of other currencies or monetary instruments.