"It is with heavy hearts that our family shares the sudden passing of our beloved Chuck Norris yesterday morning. While we would like to keep the circumstances private, please know that he was surrounded by his family and was at peace," the family said in a post on Instagram.
"To the world, he was a martial artist, actor and a symbol of strength. To us, he was a devoted husband, a loving father and grandfather, an incredible brother, and the heart of our family."
Before he would become a star in movies and on TV, Norris was wildly successful in competitive martial arts.
He became a six-time undefeated World Professional Middleweight Karate champion.
He also founded his own Korean-based US hard style of karate known sometimes as Chun Kuk Do and the United Fighting Arts Federation, which has awarded more than 3300 Chuck Norris System black belts worldwide.
Black Belt magazine ultimately credited Norris in its hall of fame with holding a 10th degree black belt, the highest possible honour.
"He lived his life with faith, purpose, and an unwavering commitment to the people he loved. Through his work, discipline, and kindness, he inspired millions around the world and left a lasting impact on so many lives," the family said.
"While our hearts are broken, we are deeply grateful for the life he lived and for the unforgettable moments we were blessed to share with him. The love and support he received from fans around the world meant so much to him, and our family is truly thankful for it. To him, you were not just fans, you were his friends.
"We know many of you had heard about his recent hospitalisation, and we are truly grateful for the prayers and support you sent his way.
"As we grieve this loss, we kindly ask for privacy for our family during this time.
"Thank you for loving him with us."
Norris celebrated his birthday just over a week before his death, posting a sparring video on Instagram.
"I don't age. I level up," he wrote.
with AP
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