Amy Winehouse's Autopsy Results Fail to Establish Cause of Death
07/25/2011 AT 03:30 PM EDT
According to reports, police say the late singer's autopsy – which took place on Monday at the St. Pancras Mortuary in London – has not established a cause of death. Results are expected in two to four weeks, after further toxicology tests are performed.
Shortly after her death, a police source told PEOPLE that the troubled Grammy winner, 27, was not surrounded by drugs or paraphernalia when she passed away.
– Dahvi Shira