Western Road in Launceston is closed westbound after a serious accident. Police say a car left the road and hit trees near Two Bridges.
The driver was left with serious injuries.
Motorists are advised to avoid the area if possible.
The A30 in Cornwall is closed westbound due to a serious accident between the A3047 at Scorrier and the A3047 at Redruth.
It follows a collision between a lorry and a woman pedestrian near the Avers overbridge. She has been seriously injured.
The road has been closed at Chiverton Cross and is likely to be closed for some time.