Thousands of Albanians have descended on central London to 'celebrate' the country's independence day.
The streets around Westminster were blocked by raucous crowds waving Albanian flags and setting off fireworks, with Audis, Mercedes and convertible sports cars seen driving on the pavement and honking their horns.
Some people have been seen waving flags while standing through the sunroofs of moving vehicles, while regular traffic trying to get through the capital has been brought to a halt after the rally caused roads to be closed.
The Metropolitan Police has confirmed it has arrested multiple people after some people threw fireworks towards the crowd, while others threw bottles towards officers.
The force has issued a dispersal order on the streets of central London, giving officers greater powers to make people leave the area or detain them if they refuse.
Albanians in London hold flags as they gather to celebrate the country's independence day on Tuesday
A young child is seen climbing through a sun roof with an Albanian flag wrapped around him
A masked man with an Albanian flag draped around his neck talks on the phone during the rally
Police and people attending the rally clash near York Road in Waterloo as the demonstration takes place on Tuesday
Police lead a man away from the Albanian independence day demonstration in central London
Video shared on social media shows demonstrators driving through the capital in front of landmarks such as the London Eye and Big Ben with Albanian flags draped across their bonnets.
In one video, a young child is seen standing up through the sun roof of a car with an Albanian flag wrapped round him as fireworks are let off nearby.
In another, sports cars were seen mounting pavements as Westminster came to a standstill.
Loud firecrackers were let off while the long line of vehicles beeped their horns continuously to celebrate Albania's independence, which is commemorated on November 28 each year.
The small European nation became independent on that date in 1912, just 111 years ago.
In a series of posts on X (formerly known as Twitter), the Met confirmed multiple offences had been reported during the demonstration.
Early in the evening the force wrote: 'Officers have stopped several vehicle convoys that have travelled into central London this evening.
'A number of drivers have been reported for driving offences and several vehicles have been seized. Officers will continue to deal with anti-social behaviour.
'We believe some of the drivers were travelling to a protest in Belvedere Road, near Jubilee Gardens.
'This is ongoing and officers are there to keep people safe and to deal with any offences.'
The police later estimated that 'around 1,000 people' had gathered in Belvedere Road as part of the demonstration, with the road closed between York Road and Concert Hall Approach as a result.
It added: 'We've seen several people waving Albanian flags through the sunroofs of moving cars. This is clearly dangerous. Two cars have been stopped and anyone else seen doing this will be dealt with by officers.
Albanians came in their droves to celebrate independence day in London on Tuesday night
Motorists drove through London with Albanian flags draped across their car bonnets
The Met Police have been sharing photos (above) and updates of the demonstration in London via their X account
'The event in Belvedere Road continues and officers remain in the area to keep people safe. We have made one arrest after a man threw a firework towards the crowd near to Jubilee Gardens. He has been taken into custody.'
The force later said a breakaway group of demonstrators gathered near Waterloo Station, where they clashed with police.
It wrote: 'A group of people have now gathered in York Road, near Waterloo Station. Officers are in the process of clearing the road and enforcement action will be taken if necessary.
'The breakaway group in York Road has become confrontational and aggressive with bottles thrown towards officers. Arrests have been made. We are using Section 35 powers to disperse the crowd and prevent further disorder. Belvedere Road is now clear.'