Officials at the Environment Agency have blamed the recent heatwave for the deaths of thousands of freshwater fish, across the region.
The intense heat has caused oxygen levels in the water to plunge. There have been reports of fish in distress in Welney in Norfolk and Tiptree in Essex.
The Environment Agency is able to treat affected waterways with River Rover aeration equipment if they are e notified.
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Officers investigating the murder of two people in Colchester have carried out a new search of the River Colne based on new information.
A dry evening with light winds, but soon turning cloudy with outbreaks of rain and increasing winds arriving by late evening.
A 16-year-old boy accused of killing two people in Colchester has appeared in court today.