The Australian airline Qantas has grounded its six-strong fleet of Airbus A380 airliners after one of the superjumbos made an emergency landing.
Qantas flight QF32 experienced engine trouble shortly after taking off from Singapore on its way to Sydney.
One of the engines "exploded with a loud bang" and the plane started shaking, a passenger told the BBC.
Pieces of debris probably from the aircraft were found on the nearby Indonesian island of Batam.
Qantas said the plane, with 433 passengers and 26 crew on board, experienced an "engine issue" over western Indonesia shortly after taking off from Singapore time at about 1000 (0200 GMT).
"It's a significant engine failure," Qantas chief executive Alan Joyce said at a news conference.
"We do take our safety reputation and our safety standards unbelievably seriously. And we're not going to take any risks with passenger safety - and as a precaution, we're suspending the flights of the A380 aircraft until we're comfortable that we understand the reasons for this".
No-one was injured during the incident, which ended at Singapore's Changi airport.
Smoke billowed from the aircraft, which aviation experts say is capable of flying on two engines.
One of the engines was blackened and its rear casing was missing.
A team of air crash investigators are being sent to Singapore from France, where Airbus is based, to assist in the investigation. A spokesman for Rolls-Royce, the British firm which made the plane's Trent 900 engines, said it would work with Qantas to identify what the problem was.
BBC News
