Thousands of fish have died in a lake in Cheltenham in what the Environment Agency has described as a mass suffocation.
Pittville Lake is part of the town's largest ornamental park.
People are now being warned to stay away from the water.
Katie Rowlett reports:
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Rain has pushed up from the south overnight and that will be with us for much of the day, with some heavy showers this afternoon.
Rain will be with us for much of the day with some heavy showers this afternoon. Winds will be much lighter than of late
Becoming cloudy, outbreaks of rain, winds easing.