Los Angeles: Frank Sinatra Jr., the son of iconic singer Frank Sinatra, died from a cardiac arrest on Wednesday. He was 72.

Sinatra Jr was also a successful singer. He died while on tour in Daytona, Florida, according to a short statement on the Sinatra family's website. He was due to perform on Wednesday at The Peabody in Daytona Beach as part of his "Sinatra Sings Sinatra" tour. "The Sinatra family mourn the untimely passing of their son, brother, father, uncle, Frank Sinatra, Jr.," the statement read.

The Sinatra Jr was born Francis Wayne Sinatra on January 10, 1944. He was the middle child of father Frank Sinatra and first wife Nancy Barbato Sinatra. Sinatra Jr often said that he rarely saw his father who was always performing or in movies.

When he was 19, Sinatra Jr was kidnapped and held for ransom on tour in 1963. Frank Sinatra reportedly paid around $240,000 at the time for his release.

Celebrities took to Twitter on Wednesday to express their sorrow at the news of his death.

"Frank Sinatra, Jr. was a friend to Family Guy, and a friend to me. I'm saddened at his passing, but grateful to have known him. RIP, Frank," Seth MacFarlane tweeted.

"RIP Frank Sinatra Jr. Thoughts with his mother Nancy, sisters Nancy and Tina and his son Michael," Mia Farrow tweeted.

"I am deeply saddened to hear of the passing of Frank Sinatra Jr and send my sympathy to Tina and Nancy and the Sinatra family," Tony Bennett tweeted.

Sintra Jr got married to Cynthia McMurrey in 1998, but they divorced in 2000. Sinatra Jr. is survived by son Michael and sisters Nancy and Tina Sinatra.