The Maine Turnpike Authority has lifted a travelers alert for a section of the northbound turnpike where a tractor-trailer crash had slowed traffic early Tuesday morning.

The crash between Exit 25 in Kennebunk and Exit 32 in Biddeford was reported shortly after 3 a.m. As many as two lanes were closed while emergency crews cleared the area.

Traffic flow had returned to normal by 6:30 a.m., according to the turnpike authority.