Reports are coming in from the entertainment website TMZ
I am in total shock !
Update 23:11 GMT
There is a lot of confusion. Most major news outlets are holding back from confirming or denying the story but they are all quoting TMZ extensively.
Update 23:27 GMT
The LA Times is reporting
Pop star Michael Jackson is in a coma and his family is arriving at his bedside, a law enforcement source told The Times.
Jackson was rushed to Ronald Reagan UCLA Medical Center this afternoon by Los Angeles Fire Department paramedics.
Fire Capt. Steve Ruda said paramedics responded to a call at Jackson's home at 12:26 p.m. He was not breathing when they arrived. The paramedics performed cardiopulmonary resuscitation and took him to the hospital, Ruda told The Times.
Update 23:24 GMT
It looks like our worst fears are confirmed the LA Times has joined TMZ in reporting that Michael Jackson is now dead.
Pop star Michael Jackson was pronounced dead by doctors this afternoon after arriving at a hospital in a deep coma, city and law enforcement sources told The Times.]
May his soul rest in perfect peace.
Update 23:36 GMT
Confirmation now coming in from several news sources including AP, CBS and the BBC.
Update 00:44 GMT
The Los Angeles Coroner has confirmed his death.