Hundreds of students gathered in a park to take part in a mass snowball fight - flouting strict Covid regulations in lockdown.
Witnesses said they were shocked at the scenes, which they claimed showed a "blatant disregard" for the strain the NHS is under.
Around 200 people gathered in Leeds for the snowball fight, which one student on Twitter dubbed "the battle of Hyde Park".
The participants split into two opposing groups, charging at each other and throwing snowballs at around 2pm on Thuresday..
However, horrified onlookers were left shocked as mass gatherings are banned under lockdown rules.
Liam Ford, who lives nearby, said: "With what's going on, I can't condone mass gatherings like that.
"I've really come to appreciate going for a walk and having that time, I think these people have abused that.
"We were going for a walk in the park, it's literally around the corner from our house, and we heard all this commotion.
"I couldn't believe what I was seeing.
"There were two groups of around 100 people each side, stood apart, charging at each other and throwing snowballs.
"I was stood there for a good ten minutes and there times when it quietened down and then picked back up again.
"It just shows a blatant disregard for the NHS and the strain it is under."
One Twitter user fumed: "Pandemic? What pandemic?! It's no wonder people are dying when this sort of thing occurs."
He added: "It's quite an open park so you can see the middle of it from wherever you are. Every so often you could hear them picking up again.
"For there to be so many people, I think there must have been some sort of organisation behind it."
Hyde Park is a large public park north-west of Leeds city centre, within an inner-city residential area of the same name.
It is a hugely popular area with students and houses a large number of student digs.
West Yorkshire Police has been contacted for comment.
