Pakistan, July 20 -- A tourist boat ferrying families around Vietnam's Ha Long Bay capsized in a storm on Saturday afternoon, leaving at least 34 people dead, according to state media reports, as rescuers scrambled to locate the missing.

The vessel was carrying 48 passengers and five crew members when it capsized in the UNESCO World Heritage site because of sudden heavy rain, the VNExpress news site said.

Most of those on board were families visiting from the capital Hanoi, with more than 20 children among the passengers, it said. "Border guards rescued 11 people and recovered 34 bodies," it added.

Rescue efforts were set to continue into the night to find the eight still missing.

Ha Long Bay office worker Tran Trong Hung told AFP the...