A major search is under way following reports that a teenage boy went missing after getting into a lake at a beauty spot.
Specialist boat units from Cheshire Fire and Rescue Service are searching Pickmere Lake, between Knutsford and Northwich, after the alarm was raised shortly before 17:00 BST.
Cheshire Police said a helicopter was also assisting the search.
Some residents reported emergency service vehicles finding it difficult to make their way past parked cars – although it is not believed there were major delays.