8 minutes ago Phil ShepkaCambridgeshire political reporter Shariqua Ahmed/BBC The Environment Agency found elevated levels of ammonia and low levels of oxygen in the dyke The government has apologised to a former environment secretary for not responding to his questions about a lack of a prosecution after hundreds of dead fish were found in a dyke. About 900 fish died from elevated levels of ammonia and low levels of oxygen at Kings Delph, near Whittlesey, Cambridgeshire, in September 2024.