Amy Winehouse, 27, found dead at her London flat after suspected 'drug overdose'

By SARAH BULL Passing: Amy Winehouse has been found dead at her home this afternoonTroubled singer had a long battle with drink and drugsLondon Ambulance Service found singer at 3.54pm but unable to revive herShe was 'beyond help' according to Sky sourcesAutopsy could take place 'within next 24 hours' Comes after Winehouse was booed off stage after shambolic Serbian showAmy Winehouse has been