An investigation has been launched after an "oily substance" was spotted at a brook that has repeatedly faced pollution.
Footage of Monks Brook, near Fleming Park, Eastleigh shows the substance constantly flowing downstream.
The brook flows into the River Itchen which it meets at Swaythling. It has previously been hit by pollution.
Concerned residents have now contacted politicians, the council and the Environment Agency in a bid to get the problem fixed.
Eastleigh resident Mike Clark, 57, often walks his dog near the stream.
READ MORE: Warning issued after Monks Brook river contaminated by fuel oil
He said a leak happened last year. He said: “All of the times I have seen it, the whole of the river has been covered in oil and it is just constant flow.
“It seems to happen whenever there is a major downpour.
“It is obviously bad for the environment and the fish and any other animal that is drinking out of there.
“It is not good but nearly a year later it is still happening. I’m a bit annoyed. It needs to be sorted. You can’t just put your head in the sand.”
Signs and oil booms have now been put in to try and fix the problem.
READ MORE: Environment Agency to monitor Monks Brook in Eastleigh
An Environment Agency spokesperson said it is investigating the source of the oil and said “there are limited environmental impacts".
The spokesperson said: “We have been encouraged by the number of reports from the public that allowed us to intervene quickly and we urge anyone with details on how fuel may have entered the brook to contact the Environment Agency's 24-hour emergency hotline in confidence on 0800 807060."
An Eastleigh Borough Council spokesperson added that it is aware of the spill but that as it potentially concerns pollution of controlled waters, it is “no statutory powers or resources to deal with”.
“It is an issue for the Environment Agency, so we pointed the person who contacted us in their direction.”
Speaking on social media, some residents said it has “always been the same” with another saying that it “looks particularly bad this time”.
It comes after a warning was issued in 2019 for owners to keep their dogs away from Monks Brook after oil was spotted in the water.
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