Archaeologists have analysed DNA found in the remains of a woman who died 7,200 years ago in Indonesia — challenging previous theories around the migration of early humans.

The remains of the teenager, nicknamed Besse, were discovered in the Leang Panninge cave on Sulawesi in 2015.

It is believed to be the first time ancient human DNA has been discovered in Wallacea, a group of islands between mainland Asia and Australia.