A 13-year-old girl is among five teenagers arrested over a mass brawl involving youths armed with machetes at a Birmingham cinema.

Families were watching Frozen 2 at Star City when the disorder broke out late on Saturday afternoon, sparking a mass evacuation of the complex.

Police said up to 100 teenagers were involved in the “major disorder”, where people were armed with machetes.

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“Dozens of officers were sent to the complex after a 999 call just after 5.30pm reporting a group of youths with machetes,” a spokesperson for West Midlands Police said.

“Two machetes were seized during the trouble, which saw pockets of fighting and seven police officers left with minor injuries as they dealt with the crowds in and around the cinema.”

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Warren Gatland’s side had to battle after France’s fast start but capitalised on their rivals’ ill discipline to squeeze into the semi-finals, 20-19 Reuters 37/50 19 October 2019 People gather in London to join the Final Say march for a people's vote Angela Christofilou/The Independent 38/50 18 October 2019 Protesters on Whitehall in London during an Extinction Rebellion climate change protest PA 39/50 17 October 2019 European Commission President Jean-Claude Juncker and Britain's Prime Minister Boris Johnson shake hands during a news conference after agreeing on a Brexit deal, in Brussels Reuters 40/50 16 October 2019 A man walks his dog through the fallen leaves in Clarkes Gardens, Allerton in Liverpool PA 41/50 15 October 2019 Police officers carry away an activist as Extinction Rebellion protesters block a road with a caravan in central London Reuters 42/50 14 October 2019 Queen Elizabeth II sits with Prince Charles on the Sovereign's throne ahead of delivering the Queen's Speech at the State Opening of Parliament AFP 43/50 13 October 2019 Great Britain's Joe Fraser competes on Parallel Bars during the World Gymnastics Championships in Stuttgart, Germany. He claimed GB's second gold with his victory. The 20-year-old from Birmingham nailed his routine to score 15.0 then watched as a series of rivals failed to live up to his total Getty 44/50 12 October 2019 St Helens players celebrate with the trophy after they won the Super League Grand Final at Old Trafford in Manchester. They beat Salford Red Devils 23-6 PA 45/50 11 October 2019 Richard Ratcliffe, husband of British-Iranian aid worker Nazanin Zaghari-Ratcliffe jailed in Tehran since 2016, holds his daughter Gabriella during a news conference in London. Their five-year-old daughter has arrived back in Britain, after making the "bittersweet" decision to bring her home AFP/Getty 46/50 10 October 2019 Irish Prime Minister Leo Varadkar and British Prime Minister Boris Johnson at Thornton Manor. Their meeting focused on further Brexit proposals EPA/Noel Mullen 47/50 9 October 2019 Wales survived an almighty scare against Fiji to secure quarter-final spot at the rugby world cup. Warren Gatland’s side recovered from a 10-0 deficit thanks to a hat-trick from Josh Adams AFP/Getty 48/50 8 October 2019 Protesters dubbed the Red Rebels at Millbank at the junction with Great College Street, during an Extinction Rebellion protest in Westminster PA 49/50 7 October 2019 Final preparations are made in front of a reproduction of Michelangelo's 'The Last Judgement', ahead of the opening of for the 'Michelangelo: A Different View' exhibition at Hull Minister PA 50/50 6 October 2019 A car drives through a flooded street in Whitley Bay in Northumberland PA

Armed police were deployed to the scene, drawing Tasers to restore order following a “very hostile response”.

Officers were left with facial injuries, and a knife was recovered from a nearby roundabout.

Investigators said they were working to understand the reason behind the disorder, which bears the hallmarks of an organised fight between rival groups.

One witness said that “a young boy was crying on the floor with his mother” as the fight broke out.

Rachael Allison told the Press Association: “The police told everyone to leave the cinema as they held Taser guns in their hands and started to bring in guard dogs.

“I spoke to a policeman who told me it is unclear whether the kids had weapons and also stated when kids fight they bring their group of friends.“

Eyewitness Choleigh McGuire said the fight started as she queued up with her daughter for Frozen 2.

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“There was a fight in the cinema ... group of girls on one girl and it all escalated,” she wrote on Twitter. “The group ran into the cinema rooms to hide and a lot of police turned up.

“Has to be one of the scariest experiences of my life, so sad all the little children were there.”

Five teenagers have been arrested. A 13-year-old girl, another girl and boy aged 14, and 19-year-old man were held on suspicion of assaulting police officers.

Another boy, aged 14, was arrested for obstructing police.

Cinema managers closed the complex for the rest of the evening and police issued a dispersal order, giving them powers to move crowds on and arrest those who refused.

Supt Ian Green, from Birmingham police, said: “This was a major outbreak of trouble which left families who were just trying to enjoy a night out at the cinema understandably frightened.

“We worked quickly to move the crowds on, but were met with a very hostile response and officers had to draw Tasers to restore order.

“Thankfully, the injuries to our officers were very minor. We’ve also recovered two machetes and a knife, and it’s clear that some of those who went to Star City last night were intent on causing trouble.

“We’ve had a great response from the public who have been very supportive of our officers.”

Supt Green appealed for people to pass footage or photos of the disorder to police, who have already received phone calls identifying some suspects.

“We understand that families with young children will have been left upset by what they saw last night, but we urge people to appreciate that our aim last night was to protect the public and restore order, and that’s what we achieved,” he added.

Anyone with information is asked to contact police online or by calling 101, or Crimestoppers anonymously on 0800 555 111.