Flight MH370: search teams racing against the clock to find black box

Search teams are racing against the clock to find the missing Malaysia Airlines flight MH370 as the window for finding one of the black boxes with an active power source gets progressively smaller.

Australia’s defence minister, David Johnston, said on Tuesday that a spell of “reasonable” weather in the Indian Ocean search area meant the sea and air search teams would be stepping up their efforts in the next few days.

On Monday the Australian vessel Ocean Shield detected two separate pulses in the Indian ocean search area consistent with signals emitted by a black box. Full story 

Pictured: David Johnston, right, and Angus Houston address the media in Perth on Tuesday. Photograph: Paul Kane/Getty Images