Just one more example of the best healthcare system in the world:

Police want to interview Michael Jackson's doctor after the star's family suggested he died because of a drug overdose, according to reports.

The King of Pop suffered a cardiac arrest at his home in Holmby Hills and was taken to the UCLA medical centre where he was pronounced dead.

Tmz.com said Jackson received a daily injection of Demerol, a synthetic narcotic similar to morphine, but was given "too much" on Thursday.

Los Angeles police want to talk to the doctor - who lived at the star's home and administered his injections - but he has not yet been found, the entertainment website said.