The search for missing Malaysia Airlines flight MH370 has entered its most intensive phase yet as dozens of planes and ships continue to scour the southern Indian Ocean.
Up to 13 planes and 11 ships are taking part on Saturday, Australian officials coordinating the search said.
Ships with advanced locator technology are trying to find the plane's data recorders before their batteries fade.
The plane disappeared on 8 March and was carrying 239 people.
It is believed to have crashed in the southern Indian Ocean, although no confirmed debris has been found.
It is still not known why the plane diverted from its planned flight path from Kuala Lumpur to Beijing,
'Battery fading'
The search is being co-ordinated by the Australian government's Joint Agency Coordination Centre (JACC) from the city of Perth in Western Australia.
In a statement, JACC said the focus was now on a search area of about 217,000 sq km (84,000 sq miles), 1,700 km (1,000 miles) north west of Perth.