A boy survived the sinking of a tourist boat in Vietnam which killed dozens of people by sheltering in an air pocket of the overturned vessel, it has emerged.

A Vietnamese man who survived the capsizing of a tour boat in Ha Long Bay said he escaped the overturned vessel by swimming out through a window underwater

At least 35 people have died and several are still missing after a tourist boat capsized in Vietnam during bad weather. The incident took place in Ha Long Bay, a popular tourist destination in the north of the country.