A stretch of the M27 eastbound has been closed following a crash.
The motorway is shut between Whiteley at junction 9 and junction 12 for Portsmouth. It was initially closed from junction 11 at Fareham. Lane three on the westbound carriageway is also closed.
National Highways said the crash involving a motorcycle happened at about 06:45 BST. It said plans were under way to release traffic within the closure.
Drivers are being diverted off eastbound at junction 9 and on to the A27 towards Fareham. People are being urged to allow extra time for their journey, re-route or even delay their trip.