Rescuers raced to find more than a dozen people still missing on Saturday after a week of heavy flooding in Vietnam, where authorities said at least 55 people have died.

Relentless rain has lashed south-central Vietnam since late October and popular holiday destinations have been hit by several rounds of flooding.

Whole city blocks were inundated this week in coastal Nha Trang, while deadly landslides struck highland passes around the Da Lat tourist hub.

At least 55 people have been killed across six provinces since Sunday, while the search continues for 13 others, the environment ministry said in a statement released on Saturday.

Mountainous Dak Lak province was the hardest hit, with more than two dozen fatalities, it said.

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