LEWES — A 67-year-old Lewes man in a motorized wheelchair was admitted to the hospital in stable condition after being struck by a Delaware State Police-driven vehicle Tuesday at 5:04 a.m., authorities said.

The collision occurred as a fully marked 2013 Chevrolet Tahoe was traveling north on Del. 1 (Coastal Highway) with a green light approaching the intersection of Dartmouth Drive, spokeswoman Master Cpl. Melissa Jaffe said. The pedestrian was attempting to cross the highway from the east to the west within the cross walk, police said.

For unknown reasons, police said, the pedestrian failed to obey the cross walk signal and crossed directly in front of the Tahoe. In an attempt to avoid the collision, according to police, the trooper braked suddenly and swerved to the left but struck the left side of the motorized wheelchair within the middle of the crosswalk. The pedestrian was ejected from the wheelchair and came to rest in the middle of the northbound lane of travel, police said.

The pedestrian was transported by ambulance to the Beebe Medical Center.

The trooper who was on duty and assigned out of Troop 7 in Lewes was wearing his seatbelt and did not suffer injuries as a result of this crash, police said.

The Collision Reconstruction Unit is continuing to investigate. Del. 1 in the area of Dartmouth Drive was closed for about two hours while the crash was investigated and cleared.