Two people are dead following a high-speed chase on Highway 11.

The incident began at 4:17 a.m. Tuesday when a vehicle refused to pull over for an OPP officer.

A chase followed and the vehicle exited Highway 11. at Memorial Avenue in Orillia, crashing near Memorial Avenue and Dunn Avenue.

A 28-year-old man and 19-year-old woman were both killed in the single-vehicle accident.

They were initially transported to Soldier's Memorial Hospital, but succumbed to their injuries.

The Special Investigations Unit has set up a mobile command unit at the scene.

Any witnesses are asked to contact police.

No identities have been released.