Suffolk Police said the crash happened on the westbound carriageway of the A14 near Rougham around 4.35am this morning.
A car, followed by a cop vehicle and then an ambulance, were all involved in a collision with the teenager, who is thought to be from the local area.
He has not been formally identified but his next of kin have been informed.
Police said neither the cop car nor the ambulance were responding to an emergency at the time and did not have blue lights flashing.
The police car was taking a person under arrest to custody and the ambulance had a patient on board, and no-one in either of the vehicles, or the other car involved, sustained any injuries.
The westbound carriageway was closed while a collision investigation took place, reopening at 2.30pm.
Anyone who witnessed the crash is asked to contact Suffolk Police on 101 quoting reference CAD 80 of 14 October.
The incident has been reported to the Independent Office for Police Conduct.
Source: Read Full Article