Australian PM says 'Very confident' signals are from black box

Searchers are "very confident" that signals detected in the hunt for missing Malaysia Airlines flight MH370 are from black box, Australian Prime Minister Tony Abbott said on Friday. [Special coverage]

"We have very much narrowed down the search area and we are very confident the signals are from the black box," Abbott said from China, according to the Australian Broadcasting Corporation.

(Updated at 12:20)

Related story: Australian plane detects suspicious signal in MH370 search

A Royal Australian Air Force (RAAF) AP-3C Orion aircraft has detected a possible signal in the vicinity of the Australian Defence Vessel Ocean Shield, Angus Houston, Chief Coordinator of the Joint Agency Coordination Center (JACC), confirmed on Thursday.