A woman who lived in the UK has died after travelling to America for a cosmetic buttock treatment.
Claudia Adusei, 20, from London, suffered medical complications after the procedure.
She travelled to Philadelphia with three friends and had injections in her buttocks on Monday.
But she began to suffer chest pains and had trouble breathing.
She was rushed from her hotel, the Hampton Inn in south west Philadelphia where the treatment was carried out, to Mercy Fitzgerald Hospital in Darby.
On Wednesday, the hospital confirmed Miss Adusei's name, age and that she was from London.
The results of a post-mortem examination by the Delaware County medical examiner's office have not been released.
Detectives are now looking for those who carried out the cosmetic procedures, which police said were arranged over the internet.
"We're not quite sure right now if that person performing that procedure is licensed or unlicensed," said Lieutenant John Walker, of the Philadelphia police south-west detectives division.
Lt Walker said investigators were also awaiting test results to determine the substance used.
