Actress Mary Tyler Moore died on Wednesday in Greenwich, Connecticut. She was 80-years-old.

Ms Moore's family announced that her death was caused by cardiopulmonary arrest after she contracted pneumonia.

The seven-time Emmy Award winner battled diabetes over the years and had been breathing through a respirator for more than a week, a source told TMZ.

She was first diagnosed with Type 1 diabetes at the age of 33 when she began starring in The Mary Tyler Moore Show, which told the story of a young, independent woman working in a Minneapolis newsroom.

The sitcom aired from 1970 to 1977, and was a hit for CBS. Ms Moore's role earned her four of her seven Emmy Awards for her depiction of a single, career woman who was hailed by feminists and fans of the sitcom.

Mary Tyler Moore's Life in Photos Show all 26 1 /26 Mary Tyler Moore's Life in Photos Mary Tyler Moore's Life in Photos Actresses Cloris Leachman (L) and Mary Tyler Moore present the Outstanding Ensemble in a Comedy Series award onstage at the 13th Annual Screen Actor Guild Awards held at the Shrine Auditorium on January 28, 2007 in Los Angeles, California. (Photo by Kevin Winter/Getty Images) Getty Images Mary Tyler Moore's Life in Photos American actress Mary Tyler Moore, who starred in a number of sitcom TV series. E Milsom/Getty Mary Tyler Moore's Life in Photos circa 1974: Full-length studio portrait of American actor Mary Tyler Moore. She is wearing a long sleeved, full-length dress which has a nautical collar. Hulton Archive/Getty Mary Tyler Moore's Life in Photos Actress Mary Tyler Moore speaks on stage at the 2nd Annual TV Land Awards held at The Hollywood Palladium, March 7, 2004 in Hollywood, California. Kevin Winter/Getty Mary Tyler Moore's Life in Photos American actress and animal lover Mary Tyler Moore, at the Los Angeles Zoo cuddling 'Lina', a baby Lowland gorilla. Keystone/Getty Mary Tyler Moore's Life in Photos Actress Mary Tyler Moore poses backstage at the 2006 TV Land Awards at the Barker Hangar on March 19, 2006 in Santa Monica, California. Kevin Winter/Getty Mary Tyler Moore's Life in Photos Mary Tyler Moore with Fidel, a therapy dog who aided families in the wake of September 11, at the ASPCA Humane Awards at The Pierre Hotel in New York City. Ms. Moore received the Lifetime Achievement Award for her efforts in preventing cruelty and suffering in animals. Scott Gries/Getty Mary Tyler Moore's Life in Photos backstage at the 18th Annual Screen Actors Guild Awards at The Shrine Auditorium on January 29, 2012 in Los Angeles, California. Getty Images Mary Tyler Moore's Life in Photos onstage during the 18th Annual Screen Actors Guild Awards at The Shrine Auditorium on January 29, 2012 in Los Angeles, California. Getty Images Mary Tyler Moore's Life in Photos Mary Tyler Moore and Whoopi Goldberg with the producers of "Thoroughly Modern Millie" in the pressroom during the 56th Annual Tony Awards at Radio City Music Hall, New York City. June 2, 2002. Photo by Scott Gries/ImageDirect via Getty Mary Tyler Moore's Life in Photos Getty Mary Tyler Moore's Life in Photos Onstage at the 13th Annual Screen Actor Guild Awards held at the Shrine Auditorium on January 28, 2007 in Los Angeles, California. Getty Mary Tyler Moore's Life in Photos Actors Carl Reiner (L) and Mary Tyler Moore attend the 18th Annual Screen Actors Guild Awards at The Shrine Auditorium on January 29, 2012 in Los Angeles, California. Kevin Winter/Getty Mary Tyler Moore's Life in Photos NO. HOLLYWOOD, CA - AUGUST 07: (L to R) Actors Betty White, Mary Tyler Moore, Georgia Engel and Cloris Leachman pose at the Academy of Television Arts and Sciences celebrating Betty White's 60 years on television at the Leonard Goldenson Theatre on August 7, 2008 in No. Hollywood, California. Kevin Winter/Getty Mary Tyler Moore's Life in Photos Actress Mary Tyler Moore receives the Groundbreaking Show Award on stage at the 2nd Annual TV Land Awards held on March 7, 2004 at The Hollywood Palladium, in Hollywood, California. Kevin Winter/Getty Mary Tyler Moore's Life in Photos Mary Tyler Moore hosts the 5th Annual Broadway Barks July 12, 2003 at Shubert Alley in New York City. Broadway Barks assists New York animal shelters in their mission to find homeless pets good homes. Myrna Suarez/Getty I Mary Tyler Moore's Life in Photos Mary Tyler Moore's Life in Photos Actress Mary Tyler Moore arrives at the celebration for Cloris Leachman's 60 years in show business at Fogo De Chao restaurant on October 5th, 2006 in Beverly Hills, California. Vince Bucci/Getty Mary Tyler Moore's Life in Photos Actress Mary Tyler Moore attends NBC's taping of 'Betty White's 90th Birthday: A Tribute to America's Golden Girl' at Millennium Biltmore Hotel on January 8, 2012 in Los Angeles, California. Angela Weiss/Getty Mary Tyler Moore's Life in Photos Actress Mary Tyler Moore presents onstage at the 2006 TV Land Awards at the Barker Hangar on March 19, 2006 in Santa Monica, California. Kevin Winter/Getty Mary Tyler Moore's Life in Photos Actor Dick Van Dyke (L) presents the Life Achievement Award to actress Mary Tyler Moore onstage during the 18th Annual Screen Actors Guild Awards at The Shrine Auditorium on January 29, 2012 in Los Angeles, California. Kevin Winter/Getty Mary Tyler Moore's Life in Photos Actress Mary Tyler Moore and Donna Hanover (centre) attend the "Women Who Change The World" Matrix awards April 28, 2003 at the Waldorf Astoria in New York City. Mark Mainz/Getty Mary Tyler Moore's Life in Photos Actress Mary Tyler Moore performing at the Holiday Celebration from Broadway to benefit the Actors Fund December 15, 2003 in New York City. Peter Kramer/Getty Mary Tyler Moore's Life in Photos Actress Mary Tyler Moore Waves To The Crowd Next To The Statue Honoring Her May 8, 2002 In Minneapolis, Mn. The Statue Depicts Moore Tossing Her Tam (Hat) From The Opening Credits Of The "The Mary Tyler Moore Show". Mike Ekern/Getty Mary Tyler Moore's Life in Photos Flanked by a member of his Secret Service detail Republican presidential candidate Donald Trump greets guests during a campaign stop at Iowa Central Community College on November 12, 2015 in Fort Dodge, Iowa. Yesterday Trump was assigned the protection detail. The stop comes on the heals of Tuesday's eight-candidate Republican debate in Milwaukee where a national poll of viewers declared Trump the winner. Scott Olson/Getty Mary Tyler Moore's Life in Photos American actress Mary Tyler Moore leaves London Airport (Heathrow), London, 12th July 1969. Dove/Daily Express/Hulton Archive/Getty

“When the doctor said I had diabetes, I conjured images of languishing on a chaise longue nibbling chocolates,” she told USA Today in 2009. “I have no idea why I thought this.”

Ms Moore was born in the New York City neighbourhood of Brooklyn Heights in 1936 to George and Marjorie Tyler Moore. When she was just 8-years-old, her family made the move to Los Angeles.