This follows two days of closed-door meetings in Malaysia, it added.

The search area will not be expanded beyond 120,000 square kilometres, the Australian Transport Safety Bureau (ATSB) said in an announcement.

More than 105,000 square kilometres have been covered so far, the ATSB said.

It said rough seas and strong winds in the search area may take the search until August to complete.

It was earlier supposed to finish by mid-year but the search vessels in the Indian Ocean have been hit by waves as high as 18 metres and strong winds.

Weather conditions in the coming week may again disrupt the search, it said.

Earlier today, the ATSB said possible aircraft debris found on Kangaroo Island, South Australia, earlier this month was not from MH370.

Flight MH370 disappeared in March 2014, with 239 passengers and crew on board, shortly after taking off from Kuala Lumpur bound for Beijing.

A piece of the Boeing 777, a wing part known as a flaperon, washed up on the French Indian Ocean island of Reunion in July last year. Other parts have also been recovered on shores of neighbouring countries.