The crash occurred last night near Port Penn Road. A Middletown man has been cited by police.

State troopers are currently investigating a four-vehicle crash that left a Wilmington man seriously injured in Middletown on Thursday night.

The crash occurred at approximately 6:30 p.m. on U.S. Route 13.

According to police, Stephen J. Stern, 70, of Middletown was driving a 2005 Chevrolet Uplander and was attempting to enter into the left hand lane of Rt. 13 southbound from the crossover at Port Penn Road north of Middletown. As Stern began to enter the left lane he pulled into the path of a 1995 Toyota Camry which was being driven by Robert A. Powell, 37, of Middletown.

To avoid striking the Toyota, Powell swerved to the right which caused him to lose control of his vehicle, police said. Powell’s vehicle entered the right lane southbound of Rt. 13 where it then struck the left side of a 2014 Kia Optima driven by Demetries A. Jones, 57, of Wilmington. The force of the impact caused Jones to lose control of his vehicle which then entered the west shoulder of southbound Rt. 13 just south of Port Penn Road. Jones’ vehicle then struck the rear of a parked 2001 International tow truck which was occupied by David M. Zak, 43, of Townsend.

Police said that Jones was properly restrained at the time of the crash, but was trapped in his vehicle until he was extricated by responding EMS personnel. Jones was taken by Delaware State Police helicopter and transported to the Christiana Hospital Trauma Center where he is being treated for serious injuries.

Powell, who was also properly restrained at the time of the crash, was taken to the Christiana Hospital Trauma Center where he was treated for minor injuries.

Neither Zak nor Stern were injured in the crash.

Stern was cited by troopers with failure to yield right of way.

The crash remains under investigation.