On the weekend where Leeds Festival and the Leeds West Indian Carnival were scheduled to be held, police acted swiftly to shut down an illegal party in the city.
It comes as new lockdown rules were brought in across the UK ahead of the bank holiday weekend.
Under the new measures, which came into force on Friday after the Metropolitan Police alone responded to more than 1,000 unlicensed events since the end of June, organisers of illegal raves will be hit with £10,000 fines.
Police attended reports of a street party on Wepener Mount, Harehills on Saturday afternoon and dispersed those in attendance.
One male, who was DJing at the illegal event, has been arrested and fined. Five other people at the party have also been fined for attending.
West Yorkshire Police were recently given greater powers to break up illegal gatherings, with fears that illicit events would be held as people craved their August bank holiday festival or carnival fix.
The government also announced tougher penalties for those breaching the rules, including fines of up to £10,000 for the organisers of unlicensed music events or gatherings of more than 30 people and £100 fines for those attending.
Police, council and public health officials continue to urge the public to abide by government guidelines and act responsibly.
Superintendent Chris Bowen said: “We hope people will recognise the ongoing risks of holding or taking part in events such as this, but where intervention is needed, we will fine people and make arrests where necessary.”
In response to a West Yorkshire Police post on Facebook, one man joked: "Did the DJ have a police record, or anything else by Sting?"
The new measures brought in by the government also mean people not wearing masks and participants in unlawful gatherings can be fined starting at £100, doubling for each repeat offence up to a maximum of £3,200.
Home Secretary Priti Patel has defended the legislation, saying it represents a crackdown on “the most serious breaches of social distancing restrictions”.
Writing in The Daily Telegraph, she said: “We will not allow this breathtakingly selfish behaviour from a senseless minority to jeopardise the progress we have made together.”
Metropolitan Police Federation chairman Ken Marsh, however, warned the legislation will mean “absolutely nothing” for enforcement in London.
He told the PA news agency: “It could be good for areas outside London, but it means absolutely nothing to us here.
“People just set up a music box in the middle of the street and say ‘it’s not mine’, it’s utter nonsense.”
He called for clearer legislation which would allow officers to “be more forceful clearing the area immediately, close the area down, the Government need more forceful wording around groups of people gathering”.
But a police chief has argued confusion over the guidelines is being used by some as an “excuse” to break the rules.
Andy Rhodes, Chief Constable of Lancashire Constabulary, said there was a “world of difference” between people acting sensibly and others who were “flagrantly” ignoring the rules.
