Multiple news sources in the U.K. are reporting that singer Amy Winehouse has been found dead at her apartment in London.
According to the Daily Mail, the 27-year-old singer was "apparently found at the property by emergency services at 3:54 p.m. this afternoon. Her death is being treated as 'unexplained' by police."
Winehouse had struggled with drug and alcohol addiction for years, and had headed back to rehab this past May.
In June, the singer was booed off the stage in Belgrade, Serbia after mumbling the words to her hit songs and stumbling around. The disastrous show resulted in the cancellation of the singer's planned 12-gig comeback tour.
A statement was released in the aftermath of that event, which said, "Amy Winehouse is withdrawing from all scheduled performances. Everyone involved wishes to do everything they can to help her return to her best and she will be given as long as it takes for this to happen."
Earlier this week, Winehouse made a surprise appearance at the iTunes Festival during goddaughter, Dionne Bromfield's set in Camden.
In 2006, the singer took home five Grammy Awards for her multi-million-selling album, Back to Black.