A 25-year-old, arrested on suspicion of causing death by dangerous driving after a crash on the M1 yesterday, has been released on police bail.
Two people died and six people were injured in the accident, near Watford, yesterday.
Hertfordshire Police say the man, from east London, has been bailed pending further enquiries.
More top news
Rising pupil numbers in the capital are putting pressure on the system.
Darren February, 33, has been sentenced to eight years in prison for stealing almost £1 million worth of jewellery from Simon Cowell's home.
Stephen Calcutt, 55, is displaying his work in a London exhibition later this month.