Three dog owners in three days have risked their lives by jumping into freezing water to rescue their pets, fire crews have said.
East Sussex Fire and Rescue has urged people to call the emergency services if their pet falls into icy water.
In the latest incident on Monday, a man had to be rescued along Sevenoaks Road in Eastbourne after trying to rescue his dog.
Group commander Nigel Cusack said he had put his life in "grave danger".
He said: "The man was walking his dog when it started to chase some birds and skidded across the ice and fell into the water.
"I know it is very hard not to jump in and rescue your dog, which is like a member of the family, but we are trained to rescue animals in these situations and have the proper protection to do so."