Police and an air ambulance are at the scene of a serious incident in Portslade this morning following a collision between what's thought to be a van and a motorcycle.
The incident happened on Wellington Road and the A259 is reportedly closed in both directions while emergency services attend the scene.
Traffic is also being affected from the B2194 Boundary Road to B2193 Church Road.
It's currently unclear whether anyone has suffered serious injuries.
More to follow.