A controversial "biohacker" who once injected himself with an untested herpes vaccine has been found dead.

Aaron Traywick's body was discovered in a spa in Washington DC on Sunday, police said.

Mr Traywick, 28, was thought to have been using a sensory flotation tank at the time.

He was the chief executive of Ascendance Biomedical, a biohacking company whose staff are known for testing experimental therapies on themselves.

The company’s goal is to make “cutting-edge biomedical technologies available for everyone” and claims to have the ability to cure HIV, Aids and Herpes.

However there is no independent proof to back up the claims.