Tribute to Michael Jackson at awards show

Stars have been celebrating the life of Michael Jackson in Los Angeles.

Jackson's father Joe joined celebrities at the annual Black Entertainment Television (BET) Awards show, which was hastily changed to honour the singer.

It is the first big tribute to Jackson, who collapsed and died last week in the city at the age of 50.

His family insisted a second autopsy be carried out on his body because of what they said were "unanswered questions" over how he died.

Speaking on the red carpet, Joe Jackson said he had "a lot of concerns" over events surrounding his son's death.

Joe Jackson attends award ceremony

The Los Angeles County Coroner's office has ruled out foul play but deferred giving a cause of death until the results of toxicology tests come back.

Unconfirmed reports suggest the singer had been taking a daily dose of Demerol, a painkiller also widely known as pethidine.

On Saturday police carried out what they said was an extensive interview with Jackson's personal doctor, Conrad Murray, who was with the singer when he died.

A spokeswoman for Dr Murray said he was not a suspect in the case. He had "helped identify the circumstances around the death of the pop icon and clarified some inconsistencies", she said.