"Violent disorder" erupted in Birmingham overnight as mobs of youths hurled fireworks at police officers.
Late on Wednesday night, West Midlands Police said four teenage boys had been arrested and taken into custody on suspicion of violent disorder.
Police said they also seized weapons in response to officers being attacked in the Dale End area of the city.
The force said: "Disorder involving young people saw fireworks released in a dangerous manner, as member of the public and our officers were attacked."
Officers added that the chaos would "not be tolerated" - but later, live-streamed footage showed another flare-up on the Second City's Staniforth Street.
Hundreds of youths were seen rampaging around, some hurling fireworks, with police officers and cars then arriving at the scene.
Social media footage showed clashes deep into the early hours, with masked young men appearing to hurl flares at cars, police - and each other.
One video showed groups of youths in dark clothing and with their faces covered crowding around an underpass.
Fireworks could be seen shooting down the street as people ran through the road
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PICTURED: Police arrived on the scene as fireworks continued to go off and people fled
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Fireworks could be seen shooting down the street as people ran through the road.
Another video showed police arriving on the scene as hundreds of people fled.
Then, just before 6am, further footage emerged of WMP officers storming a car park between Lancaster Street and Staniforth Street as youths kept firing fireworks from their hands.
A Section 60 order had earlier been put in place until 6am on Thursday to allow police to stop and search people without the need to have reasonable grounds.
Numerous videos have shown the disorder taking place in front of Staniforth House, a Unite Students accommodation building.
PICTURED: Grainy social media footage of a youth firing fireworks from their hands
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One video showed groups of youths in dark clothing and with their faces covered crowding around an underpass
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Fireworks were set off in the middle of a road surrounded by blocks of flats
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Hundreds of youths were seen rampaging around, some hurling fireworks
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According to its website, Staniforth House is home to 586 students and provides rooms from £139-a-week.
Confirming no one had been seriously hurt, Inspector Matthew Minton said: "We had robust plans in place tonight to respond to any Bonfire Night disorder.
"Behaviour like what we have seen this evening simply won't be tolerated."
GB News has approached West Midlands Police for further comment regarding events in Staniforth Street.
PICTURED: Firework rockets scream past police vans in central Brimingham
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Also on Wednesday night, a 14-year-old was arrested in Liverpool after emergency services were targeted with fireworks as they responded to a blaze on the balcony of a third-floor flat.
Merseyside Police confirmed first responders had been called to Knowsley Heights on Primrose Drive following reports of youths launching fireworks at buildings.
Five fire engines arrived at the scene before the flames were put out.
However, as firefighters responded to the blaze, and police officers were on the scene, they were attacked, leaving one female officer with a minor leg injury.
Chief Inspector Kevin Chatterton said: “We will not tolerate this type of disgraceful behaviour, particularly when it involves emergency services staff being targeted in such a way."