Police rescued a man from the water after reports of screams were heard in the Fossdyke near Roman Wharf in Lincoln.
A police drone and local patrols arrived on the scene at 2.03am on Sunday, September 8 within five minutes of the initial 999 call.
The man was immediately located in the water on the opposite side of the river bank. The drone was launched to monitor the casualty.
Officers relocated to the opposite river bank and were able to safely pull the male from the water. The man was taken to hospital, but there were no injuries.
Kevin Taylor, Special Sergeant and Chief Pilot at Lincolnshire Police Drones, told The Lincolnite: “The thermal imaging capability of the drone yet again proved vital and due to the cold temperatures time was of the essence.
“This was a great team effort involving the public who alerted us and the quick thinking and actions of the officers involved.”