WASHINGTON COUNTY, Md. (DC News Now) -- First responders shut down several lanes on Interstate 70 East in Washington County after a tractor-trailer crashed and overturned Thursday morning. According to the Maryland Department of Transportation (MDOT), the crash happened near Exit 18 in the Clear Spring area. MDOT’s State Highway Administration gets grant to cut carbon footprint in construction A live traffic camera from MDOT showed the tractor-trailer overturned on its side, blocking several lanes on the interstate. Details about what led to the collision are unknown. As of Thursday morning, it is unclear if the truck driver was injured. Morning commuters are encouraged to seek alternative routes until the crash is cleared. This is a developing story.