Actor George Eads attends a photocall promoting the television series 'Les Experts (CSI)' on the fourth day of the 2008 Monte Carlo Television Festival held at Grimaldi Forum on June 11, 2008 in Monte Carlo, Principality of Monaco. (Pascal Le Segretain, Getty Images)

CSI: Crime Scene Investigation star George Eads is engaged to marry his longtime girlfriend.

The actor has been dating Monika Casey for close to six years and decided to propose to her after she helped him through a difficult summer, which saw Eads undergo surgery to fix his broken spine.

Breaking the news on The Late Late Show with Craig Ferguson, the actor said, "I got engaged actually to a really nice girl."

"When you go through something that terrible together... I don't know, maybe it happened for a reason. She really was my champion and really helped me get through that."