Shocking pictures show the aftermath of an illegal 'Quarantine Rave' at an Oldham beauty spot.
Empty bottles, nitrous oxide canisters and plastic bags were left strewn across Daisy Nook Country Park.
Hundreds of people are thought to have attended raves in Oldham and in Trafford on Saturday night (June 14).
There were 'huge' police scenes at both.
There have been multiple reports of a stabbing at the rave in Carrington in Trafford, but this is yet to be confirmed by Greater Manchester Police.
Members of the public expressed their outrage on Sunday morning as pictures emerged showing piles of litter left at the rave in Oldham.
Residents - including members of the park's friends group - have been there since 5am clearing up.
Empty beer crates, glass bottles and silver cannisters covered the grass.
A sign reading 'Quarantine Rave' was left at the park.
Dozens of people took to social media to speak of their anger.
MP for Ashton-under-Lyne Angela Rayner said she was out with a charity in Oldham 'dealing with the illegal rave' at Daisy Nook.
She later posted on Twitter:
Those who attended put themselves and their loved ones at risk. Compeltely irresponsible.
Firstly, we've all been isolating for absolutely no reason if these idiots have all been out raving.
I really want to help clean it, but I have 2 young boys and I’m worried about what they might find!
So sad that people don’t have any respect for the environment wildlife and other people’s lives.
Hope the parents of the young people who attended this make them go help clear it up, absolutely disgusting behaviour.
Photos taken in Carrington last night captured the moment hundreds of revellers streamed past police, appearing to be on their way to one of the raves.
Some witnesses reported seeing around 50 emergency vehicles on Mile Road in Flixton at around 9.30pm.
Manchester Road was closed between Partington and Carrington.
According to witnesses, the rave appeared to be around the water treatment centre in front of the paper mill.
One person claimed there were 'thousands' of people in attendance.
Greater Manchester Police and North West Ambulance Service have been contacted for comment.