The A90 Aberdeen to Dundee road has been reduced to one lane northbound this evening following a three car crash.
The emergency services were called to the scene of the incident close to Stracathro shortly before 7pm.
Three casualties are being treated the the ambulance service, however a police spokesman said all those injured are conscious and breathing.
The road has been completely shut southbound, and one lane of the northbound carriageway has also been closed.
Diversions are in place through Hillside.