Wiltshire Air Ambulance has landed for a serious incident in Swindon.
Emergency services are attending the scene in George Street, in the Even Swindon area, after being called at around 4pm this afternoon.
The green and yellow helicopter touched down in The Park in Faringdon Road shortly before 4.30pm. Critical care medics from the charity rushed to the ongoing incident. 
A man is being treated by paramedics in the middle of the road, alongside a car.
Wiltshire Police has closed the road in both directions.
Updates follow.
