A dual carriageway has been closed following a crash.
Highways England says the A414 is closed between Hemel Hempstead and the Park Street roundabout near St Albans.
The crash involves a Fiat 500 and a motorbike and police say the motorcyclist is in a life-threatening condition.
Updated story: Motorcyclist seriously injured after crash on A414
#A414 Eastbound from J8 #M1 to #Parkstreet Roundabout is closed due to a serious road traffic collision, police are on scene dealing. The entry slip to Southbound and Northbound M1 at J8 are also closed. #HemelHempstead
— Highways England (@HighwaysEAST) September 20, 2020
The entry slip roads at junction 8 on the M1 are both shut and there is no access onto the A414 towards St Albans from the M1.
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