A man stormed the stage while the UK's entry, SuRie, was performing at the Eurovision Song Contest last night.
UK act SuRie was singing her song Storm when a man wearing a rucksack ran onto the stage, grabbed her microphone, and appeared to say: "Nazis of the UK media, we demand freedom."
He was swiftly dragged off stage and SuRie showed great determination and continued performing the song.
A man dressed in the same bandana and t-shirt stormed the stage of the National Television Awards, where he was ordered off by host Dermot O'Leary.
Northern Irish talk show host Stephen Nolan also claimed the same stage invader crashed his programme last year.
A statement from European Broadcasting Union, which operates Eurovision, said: "The EBU regrets a stage invasion took place during the United Kingdom's performance at the Eurovision Song Contest Grand Final in Lisbon this evening.
"The person responsible is currently in police custody.
"The UK singer SuRie and her team were offered the option to sing again but decided not to because they were extremely proud of her performance and have decided that there is absolutely no reason to perform the song again."
The incident left SuRie without a microphone for at least ten seconds and she was forced to clap along as cameras cut to fans in the audience.
She later resumed her song and finished to rapturous applause.
After the performance, Graham Norton who is serving as commentator for the BBC's coverage said: "She was doing a brilliant job anyway.
He later added: "We don't know why he stormed the stage but it doesn't matter, you don't hijack someone's hard-earned moment in the spotlight, no matter what your cause."
Israel won the contest with 520 points while SuRie's song was third from bottom, gaining 48 points.
The Eurovision stage was invaded last year by a man draped in an Australian flag, who flashed his bare bottom at the audience.