At least five people have died and 13 others are reported missing after Tropical Storm Wipha slammed into Vietnam's northern coast, authorities said on Monday.

The worst hit province was Thanh Hoa, where three people were killed and 12 were reported missing, according to a statement by the Central Steering Committee for Natural Disaster Prevention.

Most of the missing people were from Quan Son district, where an entire village was destroyed by a flash flood.

One person was reported dead in the mountainous province of Bac Kan and another in Dien Bien province.

The storm made landfall at around 10pm (15:00 GMT) on Thursday in Quang Ninh province, home of the UNESCO World Heritage site Halong Bay, and the neighbouring city of Haiphong.

It weakened into a tropical depression on Saturday, with rain continuously falling in the capital Hanoi on Sunday, causing some flooding.

About 800 soldiers have been deployed to assist with disaster relief in the northeastern provinces, where communities are expected to experience more dangerous flash floods and rockslides in the coming days.

Up to 400mm rainfall was reported in northern Vietnam over the weekend, while 100mm rainfall was expected on Monday.

Deutsche Presse Agentur - August 5, 2019