Initial autopsy results on George Michael are in, and it looks like … we'll have to wait a little longer for insight into the singer's death. "The cause of death is inconclusive and further tests will now be carried out," according to a statement from Thames Valley Police, which added those new results may not be known for "several weeks," per CNN. A rep for the singer had told People and Entertainment Weekly that he died at the age of 53 of heart failure. The BBC notes that Michael's death is still considered unexplained but not suspicious. (What is conclusive: the singer's philanthropy.)