A 42-year-old man has been arrested on suspicion of drug driving after a collision in Pinchbeck at the weekend.
A red Suzuki Vitara, driven by the man, released under investigation, from the Spalding area, was in collision with a black Vauxhall Corsa.
Emergency services were called to the Northgate junction with Money Bridge Lane and Cross Lane around 8.15am. The air ambulance was also in attendance.
A police spokesman said the road was re-opened to traffic at 3.15pm.
“A doctor and paramedic were by the side of the patient 20 minutes after taking off from base. After treating on scene, one patient was airlifted to hospital,” said a spokesman for Lincolnshire and Nottinghamshire Air Ambulance. It is not believed there were life-threatening injuries.