A potentially toxic blue-green algae has been found in the water at Windermere following routine checks by the Environment Agency.
The Agency says the algae can cause illness in humans and can sometimes prove fatal to animals.
Andy Burn reports:
More top news
Emma brings you Sunday's weather forecast for the Border region
It happened after yesterday's football game, which saw Barrow win 2-0 against York City.
Copeland MP, Jamie Reed, has warned Labour members not to "quit" the party after Jeremy Corbyn has been re-elected as party leader.