Malaysian Prime Minister Najib Razak is visiting Perth, Western Australia, where the search for missing flight MH370 is being co-ordinated.
Early on Thursday Mr Najib was briefed on operations as he visited the military base from which search aircraft have been flying.
He was to hold talks with Australian PM Tony Abbott later in the day.
The Malaysia Airlines plane disappeared on 8 March en route from Kuala Lumpur to Beijing. It was carrying 239 people.
Planes and ships have been scouring the southern Indian Ocean, where the jet is believed to have crashed.
The focus of the search is a 221,000 sq km (85,000 sq mile) area 1,500km (932 miles) west of Perth.
But so far not a single piece of debris from the Boeing 777 has been found.
(BBC)