Three cars and a van have been involved in an accident on the A31.
The road is now closed both ways between B3078 (Lake Gates roundabout) and Brickyard Lane.
There is a local diversion for cars but police suggest lorries divert at the Roundhouse roundabout.
More top news
United in silence. People in the Thames Valley came together today to remember those killed and injured in the Manchester terror attack.
The South stood silent today - from Brighton to Basingstoke - to remember those killed and injured in the Manchester terror attack.
After the deaths of seven people at Camber Sands last summer, lifeguards will be patrolling there for the first time from this weekend.