BRUSSELS, Belgium – A cargo plane crashed at the end of a runway and split in two while trying to take off Sunday at Brussels airport.

Four of the five crew members on board the Boeing 747 were slightly injured and were hospitalized. The aircraft cracked in two after it crashed at the end of runway 22, which lies very close to a rail line and houses.

Francis Vermeiren, mayor of the nearby town of Zaventem, said the plane did not catch on fire when it crashed after attempting to take off. Vermeiren was coordinating rescue efforts at the airport.

Firefighters coated the wings of the plane with special fire retardant foam as a precaution because the plane was still full of jet fuel. It was not clear what caused the crash.

The aircraft is owned by Kalitta Air, a cargo carrier based at Willow Run Airport near Ypsilanti, Michigan and makes regular flights from Brussels.