Missing plane hunt 'to take months'

The hunt for missing Malaysia Airlines Flight 370 in a remote patch of the Indian Ocean is progressing well but is likely to take many months because of the huge area involved, Australian officials said.

Search co-ordinator Peter Foley said there is optimism with two ships using high-tech sonar devices to search for the Boeing 777, which disappeared in March while flying from Kuala Lumpur to Beijing with 239 people on board.