The cause of her death has not been released.
"The grief we are all feeling is immeasurable," WFSB said in a statement posted on its website. "We are devastated for her husband and daughter who were her whole life. There are no words that could begin to summarize this loss for our WFSB family."
WFSB's Dennis House announced D'Aszenzo's death on the station on Saturday evening. The two worked together as co-anchors for 25 years, House noted in a video tribute.
D'Ascenzo, a graduate of Syracuse University, became an anchor shortly after joining WFSB in March 1986. She won 11 Emmy awards, including for best anchor, as well as two Edward R. Murrow awards, seven Associated Press awards and a national Gabriel Award.
"Denise was like none other," WFSB-TV Vice President /General Manager Dana Neves said. "She was a top-notch journalist and her long list of awards and accolades are proof of that. As good of a journalist as she was, she was an even better human being. She was a great listener and a gentle soul. She was a champion for those whose voices couldn't be heard.
"The news of Denise DAscenzo's passing is incredibly saddening," Connecticut Gov. Ned Lamont said. "She was a trusted name in journalism, and her work most certainly made an impact. My deepest condolences go to her family, friends, and colleagues at WFSB. She is undoubtedly a CT news legend."
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