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.

The Wonder Sea boat was carrying 48 passengers and five crew members — all of them Vietnamese — on a tour of Ha Long Bay.

At least 35 people dead after Vietnam tourist boat capsizes in Ha Long Bay - Sightseeing vessel hit by sudden thunderstorm in popular tourist area