Police have confirmed they arrested two men following a three-vehicle smash which closed the A509 near Wollaston on Tuesday night (October 19).
A woman passenger and two young children were rushed to University Hospital Coventry after the silver BMW 5 series they were travelling in collided head-on with a Volkswagen Passat estate travelling north between Bozeat and Wollaston.
It is believed the woman, who was travelling in the rear of the car, suffered serious head and pelvis injuries.
Two men who were also in the BMW were taken to hospital as a precaution — but were later arrested in connection with the incident.
A 31-year-old from Wellingborough is being questioned on suspicion of causing serious injury by dangerous driving while a 39-year-old from London is in custody after being arrested on suspicions of causing serious injury by dangerous driving and drink-driving.
The driver of the blue Passat was assessed by paramedics at the scene but did not attend hospital.
Crash investigators believe the BMW was travelling south, behind a Scania HGV at the time of the collision, around 9pm.
The A509 remained closed for some hours following the smash.
Police are appealing for anyone who saw the collision, or who has any relevant dash-cam or CCTV footage of the collision, or the circumstances prior to it, to get in touch by calling the Drivewatch Hotline on 0800 174615 regarding incident 470 of October 19.