Some 61 people are missing after a boat carrying 97 passengers, believed to be Indonesians, sank off Western Malaysia, according to the government's Maritime Agency,
The passengers included women and children and were suspected of trying to reach Malaysia illegally, a spokesman for the agency said.
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Cloud and outbreaks of rain will ease away eastwards during the morning, clearing the east coast around midday with sunny spells developing.
Police and emergency services are attending the scene.
Rebel-held east remains at risk while the pumping station supplying the western part of the city is once again in operation.