FILE - This Sept. 21, 2008 file photo shows Mary Tyler Moore at the 60th Primetime Emmy Awards in Los Angeles. Moore died Wednesday, Jan. 25, 2017, at age 80. (AP Photo/Chris Pizzello, File)

Mary Tyler Moore's cause of death listed as cardiopulmonary arrest.

The 'Ordinary People' actress passed away last week at the age of 80, and a death certificate obtained by TMZ.com has revealed the star died from the sudden failure of her heart brought on by three other severe medical conditions which were contributing factors to her death.

According to the publication, the star was suffering from aspiration pneumonia – a lung infection which develops after inhaling food or liquid into the lungs – hypoxia, a deficiency in the levels of oxygen in the tissue, and diabetes mellitus, a metabolic disease which effects blood sugar levels in the body.

Last week, the late Hollywood legend's publicist, Mara Buxbaum, said in a statement that she passed away with her husband Dr S. Robert Levine and her friends by her side.

Mara said: "Today beloved icon Mary Tyler Moore passed away at the age of 80 in the company of friends and her loving husband of over 33 years, Dr. S Robert Levine.

"A groundbreaking actress, producer, and passionate advocate for the Juvenile Diabetes Research Foundation, Mary will be remembered as a fearless visionary who turned the world on with her smile."

She had been hospitalised at a Connecticut hospital and was said to be in a critical state before she died.

The Emmy award-winning American actress was most famous for her part in 1960's television sitcom 'The Dick Van Dyke Show' and her very own titular 'The Mary Tyler Moore Show' in the 70s.

The bubbly star was nominated for an Oscar for portraying Bett Jarrett in 1980's 'Ordinary People' and had many prolific roles including starring alongside the late Elvis Presley in 'Change of Habit'.

Mary Tyler Moore was laid to rest in Connecticut on Sunday (29.01.17), during a private ceremony which saw around 50 people in attendance at the Oak Lawn Cemetery in Fairfield.

Bang Showbiz