Police have warned people to stay away from the Forest of Dean, where they have been forced to break up a rave attended by a “large volume” of partygoers.
Gloucestershire police said in a tweet early on Sunday morning: “Police are currently in the Forest of Dean near to Speculation car park dispersing a rave. People are advised not to attend the area due to safety and Covid risks.”
They added it would “likely take some time” to resolve the incident.
Police told the Press Association news agency that they responded to reports of a “large volume” of people in the area.
No arrests have yet been made.
Police across the country have had to break up several large dance parties since the lockdown began earlier this year.
Officers clashed with partygoers at an illegal event in north London last month while music from a similar event attended by 3,000 people in Bath last month could be heard five miles away.
Police later said the operation had been “relatively successful” and was “coming to a close”. They were unable to provide details on arrests, with these expected later on Sunday.