THE A1(M) southbound between junctions 10 and 9 is currently congested due to a lump of metal in the middle lane of the carriageway.
Police were called at about 11.50am this morning (Tuesday). Herts Highways have also been alerted and will prepare to remove the material.
You may also want to watch:
Become a Supporter
This newspaper has been a central part of community life for many years. Our industry faces testing times, which is why we're asking for your support. Every contribution will help us continue to produce local journalism that makes a measurable difference to our community.