Dry taps in the lavatories is said to have forced a Malaysia Airlines flight en route to Kuala Lumpur to make an air turn back to London's Heathrow Airport.

According to Flight Alerts, the Malaysia Airlines flight MH1 which departed at 8.36 local time, made a u-turn over Belgium.

The A380 aircraft also had to jettison its fuel in order to reduce landing weight before safely landing at the airport.