A driver has escaped without serious injuries after her car veered off the road at 70mph into a ditch.
Two lanes were closed on the A27 near Portsmouth after the accident, which happened at about midday.
The eastbound route was shut before the A3M at Farlington, with delays going back to the A2030 Eastern Road.
Highways England said police were helping to recover a car which has fallen down a ditch.
A South Central Ambulance Service spokesman said a caller had said a driver hads veered off the road at about 70mphand went down an embankment.
The driver, a 21-year-old female, sustained minor injuries and was helped from the car with the help of the ambulance crew and firefighters.
The spokesman added: ‘She will be taken to hospital but this is more precautionary given the speed and nature of the incident and she is obviously very fortunate not to have been seriously injured.’
The lanes have now been reopened.