LOST star Matthew Fox has a new reason to drive carefully - he could lose his job if caught flouting the highway code.

Four characters on the hit show have been axed after the actors portraying them were arrested by Hawaii police for unruly driving.

And now Fox, who plays plane crash survivor Jack Shephard, hits the road with caution - for fear of being fired from the programme.

Fox says, "We've a running joke on the Lost set that anyone arrested for DUI (driving under the influence) gets killed off in the show. So I slow down now."

DUI incidents have plagued the Lost cast in Hawaii - castmates Cynthia Watros and Michelle Rodriguez both pleaded guilty to driving under the influence in January 2006 and April 2007 respectively. Daniel Dae Kim, who stars as the programme's Jin-Soo Kwon, was also arrested on the same charge last year (07). British actor Adewale Akinnuoye-Agbaje was also arrested for driving without a licence and disobeying a police officer.