The body of a presumed stowaway has been found in the landing gear of a Royal Air Maroc plane which arrived at Brussels international airport.
Illegal immigrants risk different methods to enter Europe
The flight had arrived at Zaventem from Casablanca on Tuesday when ground crew made the discovery.
A spokesman for the public prosecutor's office said an autopsy would be carried out to determine the cause of death.
Europe faces continual attempts by immigrants trying to enter the EU illegally - by boats or stowing away.
Six years ago, two teenagers from Guinea were found dead in the landing gear of a plane run by former Belgian airline Sabena.
They were carrying a letter explaining the hardships of life in Africa and calling on Europe to help.