An Australian Airbus A380 superjumbo has made an emergency landing in Singapore after experiencing engine trouble following take-off. Qantas flight QF32 was travelling from Singapore to Sydney with 430 passengers on board. There is no word on the cause of the problem. No-one was injured. Witnesses on the nearby Indonesian island of Batam say they heard an explosion as the plane flew overhead. They say debris was found on the ground. Qantas says one of the plane's four engines shut down over western Indonesia, but that it was able to land safely with three. Correspondents at Singapore's Changi airport say smoke is billowing from the aircraft, which is surrounded by fire engines. The A380, a double-deck airliner, is the largest passenger plane in the world and made its first commercial flight in 2007. Source: