Bomb alerts have been reported on two passenger planes due to land shortly at Brussels Airport, according to local reports. The alerts were radioed in from the aircraft to air traffic control, Belgian broadcaster VRT said. One of the planes, believed to have taken off from Oslo, in Norway, has landed at Zaventem international airport. Federal prosecutors are taking the threat seriously.
Dutch sports journalist Bart Raes said he was on board the Oslo flight and confirmed it has landed.
Writing on Twitter, he said the threat came in about 20 minutes before landing.
Raes added that all passengers had been evacuated from the plane.
It is not clear whether the second plane has landed. It is not known how many passengers were on each flight or what airlines were involved.
The bomb alerts come at a time of raised tensions in Belgium, which has been the victim of a series of terrorist attacks
One of the planes, believed to have taken off from Oslo, in Norway, has landed at Zaventem international airport
In March, 32 were killed when suicide bombers attacked the main terminal of Zaventem international airport, in the north-east of the city. Many more were injured in the attacks and three bombers also died. Another explosion hit the Maelbeek metro station in the city centre, close to several European Union institutions