A "massive fish kill" is being investigated after hundreds of fish were found dead at a lake in Britain.
Hundreds of fish were discovered floating on the surface of Hogganfield Loch in Glasgow, Scotland, on Thursday.
Experts believe the fish came from a tunnel with water that flows in from nearby Frankfield Loch, reports Glasgow Live.
Also known as a culvert, the tunnel is used to carry steams or drain water under roads and railways.
The Scottish Environmental Protection Agency (SEPA) confirmed it is currently investigating the incident.
Worried locals raised the alarm after spotting around 200 fish, believed to be roach, in the north east area of the loch.
Glasgow City Council said it is also concerned about the potential reasons behind the dead fish.
A spokesperson for the local authority said: “We are concerned about the circumstances that have led to a large number of fish being found dead in Hogganfield Loch.
“The environmental protection agency SEPA is investigating this incident and we will do what we can to support them.”
It is not the first time concerns have been raised over dead fish in the area.
Five months ago, hundreds were found dead some 80 miles south at Carlingwark Loch in Castle Douglas prompting concerns that the water was being polluted.
Concerns were raised for public health in Dumfries and Galloway following the discovery in November.
SEPA and Scottish Water acknowledged the incident which was reported by locals who described the "horrible smell of dead fish".
Scottish Water confirmed that an engineer was sent to the site and no issues were identified.
A spokesperson added: "The sewer serves a small number of properties and no major businesses which would use chemicals.
"We did attend a blocked sewer in the area on November 10. We cleared this and reported it to SEPA at the time.
"It is unclear what has caused the fish to die and we will provide any further support to other agencies if required."
