Man arrested after M1 crash leaves two dead
A 25-year-old man has been arrested after two men were killed in a crash on the M1 in Hertfordshire.
The victims, aged 22 and 24 and from London, died in the collision involving two BMWs, between junctions five and four near Watford, at about 02:40 GMT.
Two other men were taken to hospital with serious injuries while four men in the second car also received treatment for their injuries.
Hertfordshire police said a man from east London was being questioned on suspicion of causing death by dangerous driving.
Alex Bushell reports