PHILADELPHIA (CBS) – Police are investigating the death of a 20-year-old woman from England who died several hours after sources say she received a buttocks enhancement procedure at a Philadelphia hotel.

Sources say the victim and three companions arrived from England Saturday.

Two of the girls, sources say, underwent the procedure Monday afternoon at the Hampton Inn hotel on Bartram Avenue near the Philadelphia International Airport.

One of the women, identified as Claudia Aderotimi, experienced breathing problems and chest pains Monday night into Tuesday and was taken to Fitzgerald Mercy Hospital where she later died.

Results of an autopsy performed Tuesday by the Delaware County Medical Examiner’s Office to determine an exact cause of death are pending.

Sources say police believe the individuals who performed the procedure checked into the Hampton Inn Saturday afternoon using false information. Investigators are still searching for the two women involved in the procedure. It is thought that the arrangement was set up over the internet.

The procedure, which usually involves injections of silicone, costs between $1,000 and $3,000 per session. Sources say the surviving female paid $1,800 for hip enhancement.

Dr. Brian Buinewicz, chief of plastic surgery at Abington Memorial Hospital, says silicone injections, like what may have been done at the hotel, are illegal and dangerous.

“Nobody in their right mind would talk about silicone or taking somebody to a hotel to do that,” said Buinewicz.

He says a real buttocks augmentation would require a surgical procedure using a silicone implant.

“That’s going to be several thousand dollars, probably $5,000 to $10,000, depending on where it’s done, who’s doing it, what they’re putting in, versus a much cheaper procedure that you can have done in a hotel room.”

The victims will remain in Philadelphia for several days while police and the FDA investigate.

Reported by Walt Hunter, CBS 3; Karin Phillips, KYW Newsradio

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