Update, 5pm: Police have reopened the Moulton road which was closed after a car hit a tree.
Broad Lane was closed from around midday until 4pm while investigations took place.
Police have confirmed that a 29-year-old man, from Moulton, is currently being treated at Pilgrim Hospital in Boston. He was transferred there by air ambulance.
Police say early indications are that he fell ill at the wheel just before the car left the road and brought down a tree in a garden.
The Lincolnshire Free Press understands that the garden is at the home of Robert Oldershaw Jnr, next to Moulton Bulb Company.
Friday, 2.30pm: A driver has been flown to hospital after a car hit a tree in Moulton.
Broad Lane has been shut while investigations continue into the accident which happened about 11.30am.
It’s believed that a black Ford Mondeo left the road and collided with a tree in the garden of a house.
The driver was taken to Boston’s Pilgrim Hospital by air ambulance. It’s unclear how serious his condition is and whether he sustained injuries in the accident or fell ill at the wheel before it.