By Kyle Anderson
Updated July 25, 2011 at 05:48 PM EDT

According to police officials in London, the autopsy performed on late singer Amy Winehouse (who passed away Saturday at the age of 27) returned inconclusive results, and no cause of death has yet been established.

They are now awaiting the results of toxicology tests, the results of which should be back in two to four weeks. Since police have determined there was no foul play involved in Winehouse’s death, her body was released to her family shortly after the conclusion of the autopsy. Her parents are reportedly planning on a private family memorial for her as soon as possible, perhaps as early as tomorrow.

Fans continue to gather at the makeshift memorial set up for Winehouse across the street from the home where the Grammy-winning singer lived. Her father, Mitch Winehouse, addressed the crowd and thanked them for their outpouring of support. “Amy was about one thing and that was love,” he told the group. “Her whole life was devoted to her family and her friends and to you guys as well. I can’t tell you what this means to us. It really is making this a lot easier for us.”