The A353 was closed both ways earlier due to a crash in the Poxwell area.
Traffic built up as a result of an accident involving two motorbikes and a car between A352 Wareham Road (Warmwell Cross roundabout) and the Ringstead turn off.
This was affecting traffic between Weymouth and Owermoigne/Wool direction and also towards Crossways.
The road has since reopened.
Speaking earlier, a Dorset Police spokesman said: "Officers are in attendance, along with the ambulance service, and two people are being treated for injuries.
"We do not have any update on their condition at this time and road closures are in place to allow the emergency services to respond to the incident."
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article