ABC News described how fireworks lit up the London sky in celebration of Joe Biden beating Donald Trump when it was actually Guy Fawkes Night.
The network said the exploding over London were – but it was actually to mark the celebrations on November 5.
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"Fireworks lit up the night sky over London, , afterwas characterized to be the apparent winner of the presidential election," ABC wrote in a since-deleted tweet.
The Hill also issued a about "Fireworks in London, Edinburgh as Biden win celebrated abroad," but elaborated about the holiday in the linked .
Brits were quick to highlight that the festivities were actually an annual tradition in the to remember the anniversary of 1605 when Fawkes and other conspirators attempted to blow up the Houses of .
"Shall we tell them? I wanna tell them!" one gleeful person wrote, while another branded the American network as "morons."
" lit by the sky the weekend of bonfire night... who knew?" read a third commentator while another noted that it's "a UK tradition, dating back to 1605."
"The skies are generally lit up for a few days before and after November 5th with fireworks," they wrote. "It has nothing to do with Biden winning."
"I can't believe the lying of you guys at ABC and The Hill," one user raged. "We do this every year in the UK and it's called Bonfire Night or Guy Fawkes night...it's a centuries old tradition.
"Any Americans reading this...don't believe The Hill. Do not believe what they're saying here."
Meanwhile, fireworks were also lighting up skylines in major cities across the on Saturday when Biden was declared the President Elect.
After beating Trump in battleground states like , , , and, the was declared the presumed victor shortly after 11.30am ET by all the major news networks in the .
However, while Trump decried the results as "fraudulent" and "phony" while Biden fans partied, tensions between their respective supporters also boiled over.
Rifle-wielding Trump supporters took to the streets in Arizona while pro-Biden crowds paraded a model of Trump's head on a spike in .
Dramatic video captured brawls breaking out in cities across the US by Saturday afternoon.
Biden had been declared the election winner at around 11.30am EST with supporters cracking champagne and taking to the streets shortly afterwards.
Meanwhile, crowds of Trump supporters protested an election won by "illegal" ballots.
In Portland, footage shared on Twitter showed a man wearing what appears to be Proud Boys garb pepper spraying a woman he claimed was in Antifa.
Another video showed a pro-Trump "Stop the Steal" rally in Michigan overtaken by violent counter-protesters.
Trump fans with guns were also pictured protesting in Arizona.
Elsewhere, however, elated Biden supporters took to the streets to celebrate, cheer and collectively breathe a sigh of relief.
The honking of car horns and cheers could be heard across many major cities, including New York Los Angeles and Philadelphia.
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But Trump has insisted the election was "stolen" from him, despite , including UK Prime Minister .
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The outgoing Potus is reportedly – and Trump won't be attending his successor's inauguration.
What's more, he " and no intention of recognizing Joe Biden's presidency," reports say.