Pennsylvania State Troopers investigate a head-on crash Thursday morning on Route 228 near Saxonburg. Seb Foltz/Butler Eagle

Ekastown Road was closed until 5:30 p.m. Thursday as state police investigated a head-on crash involving a pickup truck and a tractor-trailer.

According to dispatch calls, reports of an accident came in around 10 a.m. near 1020 Ekastown Road.

A white pickup traveling eastbound collided head-on with a tractor-trailer heading westbound, state police said. Footage from a dashboard camera on the tractor-trailer showed the pickup veered into oncoming traffic on a curve in the road, police said.

Pennsylvania State Troopers investigate a head-on crash Thursday morning on Route 228 near Saxonburg, involving an eastbound pickup truck and a westbound tractor trailer. Police on scene said a dashcam recording from the tractor trailer shows the eastbound pickup truck involved in the crash veered into the westbound lane coming around a curve. The driver of the pickup was sent to a Pittsburgh hospital by helicopter. Seb Foltz/Butler Eagle

The driver of the truck was unconscious at the scene and was taken by helicopter to UPMC Presbyterian Hospital in Pittsburgh, while the driver of the tractor-trailer was transported by ambulance to Butler Memorial Hospital for minor injuries.

An environmental crew had to be called to clean up the large amounts of diesel fuel spilled on the accident site, according to Chris Dean, chief of Saxonburg Volunteer Fire Company.

Access to Ekastown Road via a roundabout at Pittsburgh Road and Route 228 was restricted by Saxonburg Volunteer Fire Company during the duration of the accident investigation.