Roads have been closed across Welwyn Hatfield and Poters Bar by floods. (Image: Archant)
Part of the A1(M) is currently closed near Hatfield after a collision between two cars and a motorbike this evening (Friday).
The road is closed northbound between J3, A414 (St Albans) and J4, A414 (Hertford).
All emergency services are on the scene.
A diversion is in operation.
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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 here