A “serious” crash in Little Common on Tuesday afternoon held up traffic across the area as all emergency services including Kent Air Ambulance rushed to the scene.
Traffic queues snaked towards Hooe and Wartling Road from Boreham Street as far across as Pevensey Levels causing rush-hour delay as drivers tried to make their way through.
Sussex Police afterwards thanked motorists for their patience while the A259 was closed for two hours.
The collision happened around 4.30pm on the A259 at the top of the marsh road past the bend and involved three cars.
A Citroen, Toyata and Diahatsu collided - one vehicle heading west and the other two coming in the opposite direction.
The most serious casualty was thought to be the 51 year old driver of the Diahatsu who was trapped inside the car and cut out by a fire crew.
The air ambulance had been summoned but he was taken to the Royal Sussex County Hospital in Brighton with suspected pelvic and leg injuries.
Another driver, a 32 year old woman from St Leonards, was taken to the Conquest Hospital with leg and shoulder injuries, while a 48 year old Eastbourne woman in the third car was treated at the scene for slight head injuries.
John Owen, station manager for Bexhill and Battle fire stations, said the incident was “serious” needing “enhanced” response: “The crews worked exceptionally hard and this was a really professional and well-coordinated rescue.”
Sussex Police are appealing for witnesses to get in touch via 101 or email ‘email@example.com’ quoting Serial 1130 of 1/10.