An air ambulance has been called to the scene of a crash which has closed the M1 northbound near Luton.
The accident involving two cars and a lorry happened just after 7am between junctions 10 and 11.
There is congestion backing up to junction 7.
More top news
An angry fox trapped eight people inside a social club in Cambridgeshire for more than an hour after confronting them in the car park.
20 lottery winners have lent a hand at a pool refurbishment in Essex
Firefighters tackling a large fire in Thetford Forest say that they have now got it under control.