American and teenage son die after being stung by wasps in Laos

The Owens were fatally stung near Luang Prabang (Elaine Kurtenbach/AP)

An American man and his teenage son have died after they were swarmed by wasps while zip-lining at an adventure camp in Laos and stung dozens of times, a hospital official said.

Dan Owen, the director of an international school in neighbouring Vietnam, and his son Cooper were attacked by the insects on October 15 at the Green Jungle Park, as they were descending from a tree at the end of the zip line.