American author Tom Clancy – best known for his Jack Ryan series of books – has died aged 66, his publisher has confirmed.
The best-selling novelist is famed for his string of spy and military thrillers, several of which have been adapted into successful films.
Originally working as an insurance broker, Clancy began his successful writing career with The Hunt for Red October. Published in 1984, it went on to sell more than five million copies, and was labelled by then-President Ronald Reagan a "perfect yarn".
It made a successful transfer to the silver screen in 1990, starring Alec Baldwin as Ryan and Sean Connery as Soviet submarine captain Marko Ramius. Ryan has since gone on to be played by Harrison Ford in Patriot Games and Clear and Present Danger and then Ben Affleck in 2002 effort The Sum of All Fears.
British actor Sir Kenneth Branagh is set to direct Chris Pine as the CIA analyst in Jack Ryan: Shadow One, which is slated for release this December.
Alongside his work as a best-selling writer, Clancy also spent time developing ideas for video games, founding Red Storm Entertainment in the 1990s which was eventually bought out by Ubisoft. He is credited for titles including Splinter Cell, Ghost Recon and Rainbow Six.