Hundreds of fish have died at a Sunderland lake which recently had red diesel left in it.
The fish at Silksworth Lake, off North Moor Lane, were found dead earlier this week.
The Echo reported last month that red diesel had found its way into the lake, which was caused by a fuel spill linked to a surface water drain at Barclays Contact Centre, which is at nearby Doxford International Business Park.
A resident first noticed the spillage after passing by the lake while she was on a walk with her friend.
The resident reported the find to the authorities, worried that it could affect wildlife at the lake.
Environment Agency staff are now looking into the possibility that the death of the fish is linked to the spillage incident, which happened on November 23.
“We have attended and taken some water samples and an investigation is ongoing.”Environment Agency spokeswoman
Samples have been taken away for testing by workers.
Work is still being carried out to clean up the lake.
A spokeswoman for the Environment Agency said: “We’ve received reports that a large amount of fish have died at the lake.
“We have attended and taken some water samples and an investigation is ongoing.
“We’re checking whether it’s linked to the previous incident from November 23, when we were made aware that red diesel was polluting the lake, which we believed came through an outfall which is linked to a surface water drain at Doxford International Business Park.
“A private contractor which was employed by the company following that incident is still working to clear up the spillage and has just replaced the booms today.”