M1 crash: Man arrested and bailed after two killed
A 25-year-old man arrested after two men were killed in a crash on the M1 in Hertfordshire has been freed on bail.
The men, aged 22 and 24 and from east London, died in the collision, involving two BMWs, between junctions 5 and 4 near Watford, early on Monday.
The man arrested, on suspicion of causing death by dangerous driving, is from east London and will answer bail in Hertfordshire on 7 March 2013.
Two other men were taken to St Mary's Hospital in London, police said.
The four men in the second car were also injured and taken to hospital.
A police spokeswoman said their injuries were not thought to be life-threatening.
A man living near the accident told the BBC he was awoken by the noise of the crash and when he got to the site he saw some survivors fighting.
Insp Paul Campbell, of Hertfordshire Police, said: "There were a number of people who clearly were suffering an emotive reaction to a very traumatic situation.
"To say they were fighting I could not clarify at this point in time."
The accident resulted in the closure of five junctions of the motorway in both directions for nearly 12 hours.