Thames River rescue in Windsor prompts safety warning
The rescue of a woman from the Thames has prompted calls for people not to underestimate the danger of swimming in rivers.
Berkshire Fire and Rescue Service was called to help a woman in Windsor at about 03:30 BST.
Her friend and a member of staff from a nearby restaurant had also jumped into the river to try to save her.
Jeff James from the county's specialist water rescue unit said such actions could have "tragic consequences".
The fire service says the current in the Thames is particularly strong at the moment.
Mr James said: "People just totally underestimate the risks on the Thames and on the water in general."
David Walker from the Royal Society for the Prevention of Accidents said the temperature of the water could also be risk.
He said: "If you're not used to being in water that cold it can cause you to go into cold shock which means even the strongest swimmers can't swim."