Members of the public rescued the occupants of a submerged car at Bucklands Beach on Sunday night.

Police were called to the scene at 9:35pm after reports of a partially submerged car in the sea.

Two of the people in the car were children. A third person was seriously injured and was taken to hospital in an ambulance,

"My partner rescued three people. We went into water and were told no one else in the car," wrote Megan Holt on Facebook.

"A man has been taken to hospital. Just grateful the children are okay."

Police confirmed the public had assisted.

Cordons were removed from the scene at 2am and the vehicle has now been removed.

Newhsub.