The cousin of a woman who died after illegal surgery to enhance her buttocks, allegedly organised the operation.

Police detectives are investigating the involvement of Scheffee Wilson, 30, in arranging for her cousin Claudia Seye Aderotimi to have silicone injected into her buttocks by an unlicensed doctor.

Wilson is understood to have been promised her own silicone operation in return for referring her cousin. It is thought that Wilson was in the hotel in Philadelphia when 20-year-old Aderotimi was administered silicone at a cost of £1000.

Aderotimi, of Geffrye Court, Hoxton, also known as Claudiyah Carmell and Clauidyah James, suffered a heart attack following the jab in the Hampton Inn budget hotel, near Philadelphia airport.

Police said Ms Aderotimi, an aspiring actress and dancer, and three companions, were staying at a Hampton Inn hotel after travelling from London.

Philadelphia police are reportedly treating Wilson, a resident of New Jersey, as a witness. Police have seized silicone from the home of the woman responsible for carrying out the injections.

Although currently in hiding, the woman faces charges of involuntary manslaughter and practising medicine without a license. Investigators said that a woman was questioned but not arrested.

A police source said: “There is a thriving trade in these sort of procedures and the injectors travel from state to state.”

Aderotimi believed that with the cosmetic surgery she would be hired to appear in more music videos. She posted videos of herself dancing on YouTube with a pillow stuffed down her trousers to make her buttocks look bigger.

Talent scout Tee Ali, who met the university student when she filmed a video, told The Sun: “She was a dancer and choreographer. The problem was she didn’t have a butt, and she wanted a butt.

“She went to audition for one video shoot wearing fake booty pants and she got all the attention. But when they found out it was fake she didn’t get asked back.”

The silicone used was industrial grade, unlike specialist silicon usually used by licensed practices for cosmetic surgery.