Kent Police are at the scene of a two-vehicle crash in Manston.
The roads policing unit say Spitfire Way will be closed for some four hours while officers deal with the incident.
The crash is thought to have involved a car and a motorcyclist.
MANSTON update: Crash involving a motorcycle and car, said to be outside the Heli Charter building on Spitfire Way, is reportedly serious.
— Kent 999s (@Kent_999s) March 12, 2017
Emergency services were called to Alland Grange Lane at 11.28am.
Ambulance crews are also at the scene.
#KentSCIU Spitfire Way, Manston closed for approx four hours for collision investigation work. JW
— Kent Police RPU (@kentpoliceroads) March 12, 2017