There has been no sighting of any object in the search area on Thursday, said the Joint Agency Coordination Centre (JACC).

JACC in a statement on Thursday said the search area is being continually adjusted, and on Thursday it moved north, whereby at the end of the day, ten aircraft and nine ships were involved in search activities.

"Three aircraft searched in the southern search area of 248,000 square kilometres, 1700km west north west of Perth.

"The Royal Navy hydrographic ship, HMS Echo, also operated in the northern area, searching for sonic transmissions from the flight data recorder.

"One alert was experienced, but discounted. False alerts may be experienced from biological sources, such as whales or interference from shipping noise," said the statement.

According to the statement, the weather in the search area was fair, with visibility of approximately 10 kilometres.

Flight MH370, carrying 227 passengers and 12 crew, left the Kuala Lumpur International Airport at 12.41 am on March 8 and disappeared from radar screens about an hour later while over the South China Sea.

It was scheduled to land in Beijing at 6.30 am on the same day.

A multinational search was mounted for the aircraft, first in the South China Sea and then, after it was learned that the plane had veered off course, along two corridors - the northern corridor stretching from the border of Kazakhstan and Turkmenistan to northern Thailand and the southern corridor, from Indonesia to the southern Indian Ocean.

Following an unprecedented type of analysis of satellite data, United Kingdom satellite telecommunications company Inmarsat and the UK Air Accidents Investigation Branch (AAIB) concluded that Flight MH370 flew along the southern corridor and that its last position was in the middle of the Indian Ocean, west of Perth.

Prime Minister Datuk Seri Najib Tun Razak then announced on March 24, seventeen days after the disappearance of Boeing 777-200 aircraft, that Flight MH370 "ended in the southern Indian Ocean".