Thousands of fish are being released into a Lincolnshire river after a major pollution incident.
Hundreds of litres of pesticides were accidentally released into the River Slea in February 2003, killing many fish and the insects they fed on.
Rudd, roach, bream and dace are being released at a cost of £6,000, funded by proceeds from prosecution proceeds.
It is the third time the River Slea has been restocked by the Environment Agency to help revive the waterway.
A 20-mile stretch of the Slea was affected, when hundreds of litres of pesticides were allowed to escape into the water.
A Lincolnshire firm was subsequently ordered to pay £60,000 for causing the pollution.