Michael Jackson's father has dropped a wrongful death lawsuit filed against the former doctor who was convicted of causing the singer's death.

Court records show Joe Jackson's request for a dismissal was granted on Monday. The filings do not elaborate on a reason for dropping pursuit of the case. Joe Jackson initially filed the lawsuit against Conrad Murray in June 2010 on the anniversary of his son's death.

A federal judge dismissed the case but it was re-filed in a state court in Los Angeles. It sought civil damages against Murray for giving the singer a fatal dose of the anaesthetic propofol without the proper life-saving equipment.

Murray's lawyer, Charles Peckham, says Murray continues to express his condolences to Jackson's family and is glad to put the case behind him.