Police are appealing for witnesses following a fatal road collision in Waterlooville this morning.
Officers were called to the exit slip road of the northbound A3(M) at junction 4 at 5.45am to reports of a single vehicle collision.
A silver Vauxhall Astra collided with the barrier separating the slip road with the main carriageway and came to rest on the verge of the slip road.
The driver, a 25-year-old man from Southsea, suffered serious chest injuries and was taken to Queen Alexandra Hospital by paramedics from South Central Ambulance Service.
However, the driver died a short time later from his injuries.
The slip road was closed for four hours as roads policing officers carried out their investigations into the exact cause of the incident.
Police would like to thank motorists for their patience as they dealt with the incident
Officers would like to speak to anyone who witnessed the collision or who saw the vehicle prior to the incident as they may have information that could assist the investigation.
Anyone with information is asked to call Sgt Wayne Voller at Havant Roads Policing Unit on 101, quoting 44160258801, or Crimestoppers anonymously on 0800 555 111.