His son Michael said that Attenborough died at lunchtime Sunday.
Paying tribute, Prime Minister David Cameron tweeted: "His acting in 'Brighton Rock' was brilliant, his directing of 'Gandhi' was stunning - Richard Attenborough was one of the greats of cinema." Actress Mia Farrow tweeted: "Richard Attenborough was the kindest man I have ever had the privilege of working with. A Prince. RIP 'Pa' - and thank you." Attenborough was also a life president of Chelsea Football Club, which said it was "deeply saddened" to learn of his death. "He led a long and successful life and always found time for the things in life he loved most, one of which was Chelsea FC," the club said.