Special Investigations Unit (SIU) has been called in to probe the circumstances of a police chase that ended in a crash outside of Beaverton early Saturday morning.

According to a press release from the SIU – a civilian agency that investigates cases of serious injury and deaths involving the police – the crash stemmed from a disturbance call from an Orillia gas station around 2:30 a.m.

Officers from the Orillia detachment of the OPP responded to the call and a man fled the scene.

Officers pursued the vehicle, which headed south down the highway.

Just metres south of Mara Road, the 21-year-old driver lost control of the vehicle, which left the road and rolled several times.

The driver was thrown from the vehicle and suffered non-life threatening injuries. He was treated at Orillia’s Soldiers’ Memorial Hospital.

The crash, and subsequent investigation, closed the highway from Mara Road to Concession 7 Thorah until after 12 p.m.

The SIU has assigned six investigators to the case and is asking any witnesses to the incident to call 1-800-787-8529, ext. 2290.