On Saturday, Flack's family released a statement confirming the devastating news.
"We can confirm that our Caroline passed away today on the 15th February," it read.
"We would ask that the press both respect the privacy of the family at this difficult time."
ITV - the network responsible for creating the dating reality-TV show - says everyone at the network is shocked.
"Everybody at Love Island and ITV is shocked and saddened by this desperately sad news.
"Caroline was a much loved member of the Love Island team and our sincere thoughts and condolences are with her family and friends."
Meanwhile Caroline's manager Francis Ridley has also paid tribute to the much loved star.
He revealed: "We are devastated at the loss of our client and friend Caroline Flack.
“An immensely talented young woman who was at the top of her game professionally and loved by television viewers across the country.
“Our thoughts are with Caroline’s family at this time.”
The 40-year-old was due to face court next month on charges of assaulting her boyfriend, Lewis Burton.
The former Love Island presenter's last Instagram post showed her giving her pet dog Ruby a kiss.
If you or someone you know is experiencing depression call Life Line on 13 11 14 or visit Beyond Blue.