The autopsy into the death of Monkees singer Davy Jones has confirmed that he died of a heart attack.

66-year old Jones was discovered to have had a severe build-up in his arteries. The official cause of death was coronary artery atherosclerosis (or a massive heart attack). Jones was found to have an abnormal heart rhythm.

The report also found Jones had cannabinoids in his system at the time of death but it was not revealed if it was from smoking marijuana.

Davy Jones died at his home in Florida on February 29, 2012. He had complained of breathing problems in the morning but was pronounced dead by the time he arrived at hospital.

A memorial was held for Davy in New York. His daughters Talia and Annabel, former Monkees Peter Tork and Mickey Dolenz and singer Deana Martin (daughter of Dean Martin) sang a tribute of Monkees hits at the event.