A large number of human bones have been unearthed in an upmarket part of Berlin close to where Nazi scientists performed research on death camp victims' body parts.

The body parts were sent to the scientists by the notorious SS doctor Josef Mengele.

Experts have been examining the site in Dahlem since a small number of bones were found there in 2014 during works on a property belonging to Berlin's Free University. Those bones were never identified.

They have found numerous fractured skulls, teeth, vertebrae and other bones, it was announced on Thursday.

The Nazi-era Kaiser Wilhelm Institute for Human Heredity and Eugenics was also known to have a collection of bones from German colonies, among others.

Experts are now trying to trace the origin of the bones found recently.