Environment Agency staff have spent the day dealing with an emergency at a canal in Grantham after hundreds of dead fish were discovered this morning.
It's thought they died through lack of oxygen caused by the hot weather.
Chemicals have now been added to the water to bring the oxygen levels back to normal.
More top news
Weight of people trying to sign caused government petition to website to crash as Europhiles try to force a rerun of the EU vote.
The pool in Kings Heath, Birmingham, temporarily closed after a bug which can cause diarrhoea and vomiting entered the water.
North East Lincolnshire Council have released park and ride details and information on the free amenities available over this weekend.