State police continue to investigate a multi-vehicle crash on Route 1 south of the C&D Canal which sent several people to area hospitals on Thursday, Aug. 17.

The crash occurred at approximately 1:33 p.m., as Edwin Perez, 44, of Union, N.J., was driving a 2013 Freightliner tractor-trailer carrying 88 barrels of aluminum hydroxy gel in a northbound direction on Routh 1 approaching the Biddles Toll Plaza.

Perez allegedly failed to see traffic that had slowed in front of him which caused the front of his truck to strike the rear of a 2013 GMC Yukon, which was being driven by a 49-year-old Prince Frederick, Md., woman, as well as the rear of a 2014 Chevrolet Express, which was being driven by a 61-year-old New Jersey man, police said.

Both the GMC and the Chevrolet overturned after the initial impact. Perez’ vehicle then continued in a northbound direction and crossed the median, where it came to rest in the southbound Route 1 EZ Pass lanes.

The female operator of the GMC was treated at the scene by New Castle County Paramedics before being transported by ambulance to the Christiana Hospital.

Two juvenile passengers in the GMC were also treated at the scene by paramedics. They were then flown by state police helicopter to the A.I. DuPont Hospital for Children where they were treated for their serious injuries.

Two other juvenile passengers in the van were removed from the scene by ambulance and transported to the A.I. DuPont Hospital where they were treated for their non-life-threatening injuries.

Edwin Perez and the 61-year-old driver of the Express were transported by ambulance to the Christiana Hospital where they were treated for their non-life-threatening injuries.

Officers from the Department of Natural Resources and Environmental Control responded to the scene to clean up the spill of Aluminum Hydroxy.

The northbound and southbound EZ Pass lanes of SR 1 were closed for approximately 10 hours as the crash was investigated and cleared.

This crash remains under investigation by state police.