Singer Michael Jackson suffered a heart attack at his home in Los Angeles this afternoon and has died. A call to 911 was made from Jackson’s home in Holmby Hills, LA, at 12.21pm PST that the singer, 50, went into cardiac arrest after suffering a heart attack. Jackson was seen being taken into an ambulance by Los Angeles Fire Department paramedics and moved to the UCLA Medical Centre. The King of Pop wasn’t breathing when paramedics arrived at his home.

Captain Steve Ruda told the LA Times that paramedics responded to a call at Jackson’s home around 5:26 pm PST. The paramedics performed cardiopulmonary resuscitation on Jackson and took him to UCLA Medical Center. Jackson’s mother was said to be at the hospital to meet her son.

The singer was due to start a land-mark tour at London’s O2 Arena starting in July after selling out 50 shows. But the King of Pop has already had to postpone the first few nights’ shows due to ongoing concerns about Jackson’s health. Earlier this year, Jackson was seen emerging from a doctors three times in one week amid rumors that he is battling skin cancer, but the claims were denied by his representatives. Jackson has not been on tour for over a decade, but the concerts at the O2 were seen as his final comeback before finally retiring from music.