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Drivers are being warned of long delays this morning after a section of the A414 between Hemel Hempstead and St Albans was completely shut by police due to an ongoing incident.
Highways England (@HighwaysEAST) posted on Twitter just before 7am: "#A414 is closed both directions between the M1 J8 and Park Street Roundabout due to a police incident. #HemelHempstead #StAlbans."
There are also long delays on the M1 southbound between J11 Luton and J6A M25, there are delays of at least 45 minutes.