from the BBC
A Qantas airline jumbo jet has been forced to return to Singapore because of an engine problem.
The Boeing 747-400 turned back shortly after take-off from Changi Airport, airline officials said.
It comes a day after a Qantas Airbus A380 was forced to make an emergency landing at the same airport after one of its engines exploded.
Qantas grounded its six-strong fleet of A380s and an investigation is under way into what caused the failure.
The latest incident affected Sydney-bound flight QF6, which managed to land safely.
"Shortly after take-off the captain experienced an issue with one of its engines," a Qantas spokeswoman said.
No further details were immediately available.