Officers from the Environment Agency are continuing to tackle a diesel spill in Worthing's Brooklands Park.
Images from the scene show dead fish floating on the surface of the lake after a diesel tanker spilled at the nearby Lancing Business Park.
A spokesman for Worthing Borough Council said surface water then took the diesel into Brooklands Lake.
Read more about the incident here: Agents battle 'large and significant' diesel spill into Worthing's Brooklands Lake
Contractors have been working on the scene since this morning (May 29) in an attempt to limit the environmental damage.