KUALA LUMPUR - A Navy combat boat, CB 204, has reportedly lost contact while on "routine tasking" off Sabah on Sunday.
CB 204's last known position is said to be 20 nautical miles east of Mengalum Island off Sabah.
Navy chief Tan Sri Abdul Aziz Jaafar said he does not expect foul play in the disappearance of the vessel.
He said the cause was most likely due to bad weather which could have cause engine or power failure on board the vessel.
Aziz said vessels from the Air Force and Malaysian Maritime Agency are involved in the search and rescue operations.
CB 204, commanded by Lt Azri Bakar with seven staff, and another naval ship, KD Paus, had departed Kota Kinabalu Naval Base at about 5am Sunday.
At 10.30am, the Marine Region Headquarters Operations Room received a call from KD Paus informing that the two vessels were turning back due to bad weather.
KD Paus failed to communicate with CB 204 at 11.15am and it launched a search around Mengalum Island and Pulau Gaya.