Updated on Saturday, June 27, 2009, 00:35 IST

Los Angeles, June 27: The family of Michael Jackson may seek a second independent autopsy as they have "questions" about the cause of the pop star's sudden collapse and death on Thursday.

Veteran US politician and activist Jesse Jackson, who met with members of the Jackson family at their Encino compound, told ABC television's 'Good Morning America' that they were angry and frustrated by "unanswered questions" surrounding Jackson's death.

Jesse Jackson, who is not related to the family, said the relatives also wanted to know the role of the singer's doctor, Conrad Murray.

"When did the doctor come? What did he do? Did he inject him? If so, with what? Dis he use the Demerol? It's a very powerful drug. Was he injected once? Was he injected twice," he quoted the family members as asking.

The 50-year-old 'King of Pop' collapsed early Thursday at his rented Holmby Hills home in Beverly Hills. The pop star was rushed to the to UCLA Medical Center by paramedics where he was pronounced dead after attempts to revive him failed.

The Los Angeles Police Department is trying to talk to Murray, who was with the pop star when he suddenly collapsed.

The Coroner's office, however, ruled out any foul play or "external trauma" on the body of the pop star after conducting an autopsy.

Bureau Report