Aircraft and ships scouring the southern Indian Ocean for wreckage of Malaysia Airlines Flight MH370 were racing to beat bad weather on Thursday and reach an area where new satellite images showed what could be a debris field.
The international search team has been bolstered to 11 military and civilian aircraft and five ships that will criss-cross the remote search site with weather conditions forecast to deteriorate later in the day.
New satellite images have revealed more than 100 objects that could be debris from the Boeing 777, which is thought to have crashed on March 8 with the loss of all 239 people aboard after flying thousands of miles off course.
"We have now had four separate satellite leads, from Australia, China and France, showing possible debris," Malaysian Acting Transport Minister Hishammuddin Hussein told a news conference in Kuala Lumpur late Wednesday. "It is now imperative that we link the debris to MH370."
The latest images were captured by France-based Airbus Defence & Space on Monday and showed 122 potential objects in 400 sq km (155 sq mile) area of ocean, Hishammuddin said. The objects varied in size from one meter to 23 meters (75 ft) in length, he said.
Flight MH370 vanished from civilian radar screens less than an hour after taking off from Kuala Lumpur bound for Beijing, and investigators believe someone on the flight may have shut off the plane's communications systems. Theories range from a hijacking to sabotage or a possible suicide by one of the pilots, but investigators have not ruled out technical problems.
Partial military radar tracking showed the plane turning west off its scheduled course over the South China Sea and then recrossing the Malay Peninsula, apparently under the control of a skilled pilot.
The logistical difficulties of the search have been highlighted by the failure so far to get a lock on possible debris despite the now numerous satellite images and direct visuals from aircraft and ships.
The search area some 2,500 km (1,550 miles) southwest of Perth has some of the deepest and roughest waters in the world, roiled by the "Roaring Forties" winds that cut across the sea.
The winds are named for the area between latitude 40 degrees and 50 degrees where there is no land mass to slow down gusts which create waves higher than six meters.