A large artic trailer unit has tipped over causing a large diesel spill and closure of the A31 in Ferndown.
The road is closed in both directions at the Ameysford roundabout between the B3072 (Verwood / West Moors turn off) and the B3073 (Canford Bottom).
The driver was uninjured and the road is likely to remain closed for most of the day after the incident around 4.30am Tuesday.
Join the Verwood Traffic Alerts group on Facebook for on-going information.