Authorities claim they are "very close" to finding missing Malaysian Airlines flight MH370.
An Australian ship has detected two sets of signals believed to be from an aircraft’s black box and is now trying to relocate them.
Angus Houston, who is co-ordinating the search, told reporters this is "probably the best information we have had" and said the search teams were "very close to where we need to be".
But he warned that it could take days for confirmation and meanwhile the batteries of the recorders are due to run out.
If the exact position of the signals could be fixed, the vessel – Ocean Shield – could then lower an underwater vehicle to locate wreckage on the sea floor, he added.
The flight, carrying 239 people, was travelling from Kuala Lumpur to Beijing on 8 March when it disappeared.
Meanwhile, the investigation into the backgrounds of both passengers and crew continues. No concrete evidence has been found as to why the plane went off course and disappeared.
