A Malaysian navy vessel fitted with specialised sonar equipment has set sail for the Indian Ocean to join in the search for Malaysia Airlines flight MH370 that went missing nearly five months ago.
Defence Minister Hishammuddin Hussein said the KD Mutiara vessel left a navy base on Monday in the north-eastern state of Perak.
The vessel has sonar equipment that can detect objects down to 7,000 meters from the sea surface, he said.
A Chinese ship and an Australian-contracted private vessel are conducting a survey of the Indian Ocean floor where the aircraft was believed to have crashed off the coast of Western Australia.
It vanished without a trace on March 8 about an hour after takeoff from Kuala Lumpur.
Malaysia has vowed to continue the search for the missing flight until the aircraft is found.
The plane was carrying 239 people aboard the flight to Beijing when it radically changed course and the tracking instruments were shut off.
Aviation specialists have surmised that it flew south over the ocean, and would have run out of fuel.