Master Deputy Matthew Wilson, a five-year veteran of the Sheriff's Office, was traveling west on Route 140 near Mayberry Road at about 3:12 p.m. when his car collided with a Dodge RAM 1500 operated by Darian Barron, of Westminster, officials said.
The sheriff's office said its initial investigation suggested Barron was making a left turn from Mayberry Road on to eastbound Route 140 when the crash occurred.
As a result of the collision, Wilson was transported by ambulance to Shock Trauma. Barron and a passenger refused treatment at the scene, police said.
The investigation is continuing. Anyone who witnessed the collision is asked to call 410-386-2900.