A police car, an ambulance and an air ambulance have been pictured on the corner of Chichester Road and Rectory Lane.
Traffic reports suggest there has been a collision involving a lorry and two cars.
A spokesperson for South East Coast Ambulance Service confirmed that crews are in attendance alongside the air ambulance service following reports of a collision at approximately 2.15pm today.
Sussex Police and West Sussex Fire and Rescue Service have all been approached for further information.
UPDATE: Woman 'released' from car following Selsey collisionCheck our website for updates.