Five people - including four children and a man - had to be taken to hospital after a late night crash on the A1 in which a female driver tested positive for cannabis.

The collision between a black Audi Q2 and a white Toyota Yaris happened at about 12.50am today (Monday July 15) on the northbound carriageway near Sawtry.

Police and paramedics attended and five people - four children and a 36-year-old man - were taken to hospital with serious but not life-threatening injuries.

The driver of the Audi, a woman in her 40s from Peterborough, tested positive for cannabis following a roadside drugs wipe and has been released under investigation.

Anyone who witnessed the collision, or has dashcam footage, should contact police via Cambridgeshire Constabulary's website quoting incident 25 of July 15.

Anyone without internet access should call 101 and ask to speak to a member of the Road Policing Unit.