Taylor Swift concerts cancelled after terror plot foiled

An Austrian teenager arrested over an alleged plot to strike a Taylor Swift concert in Vienna planned to carry out a suicide attack that would have caused a "bloodbath" and had vowed loyalty to Islamic State (IS), authorities said on Thursday.

The 19-year-old man, who has North Macedonian roots, made a full confession in custody, Austria's general director for public security Franz Ruf told a news conference. He swore allegiance to the IS group's leader on the internet, Ruf added.

Ruf said that the suspect had chemicals, machetes and technical devices at his home in the town of Ternitz in preparation for an attack. The suspect was planning a lethal assault among the estimated 20,000 "Swiftie" fans outside Vienna's Ernst Happel Stadium.

"The main perpetrator has confessed that he was supposed to carry out a suicide attack with two accomplices," said Austrian Chancellor Karl Nehammer. "The suspects actually had very specific and detailed plans ... to leave a bloodbath in their wake."

Two other Austrian youths aged 17 and 15 were detained on Wednesday over the reported plot. Authorities painted a picture of main suspect having self-radicalised, transforming his appearance and sharing Islamist propaganda online. He quit his job on July 25, telling people he had "big plans", Ruf said.

One neighbour told Austrian broadcaster Puls24 that the suspect had kept himself to himself and had grown a "Taliban beard". The 17-year-old suspect had been given a job with a company a few days ago that was providing services at the stadium, according to security officials.

Event organiser Barracuda Music said it had cancelled Swift's three concerts in Vienna, due to start on Thursday for a sold-out 65,000 audience each, in coordination with the singer's management team. Fans, many of whom had travelled a long way to Vienna, expressed both dismay and understanding.

US broadcaster ABC cited law-enforcement and intelligence sources as saying Austrian authorities had received information about the Swift concert threat from US intelligence. Austrian Interior Minister Gerhard Karner said foreign intelligence agencies had helped with the investigation

ABC quoted the sources as saying that at least one of the suspects had pledged allegiance to ISIS-K, a resurgent wing of IS, on Telegram in June, though the plot was IS-inspired rather than directed by the group's operatives.

British police said on Thursday there was nothing to indicate that the planned attack in Vienna would have an impact on Swift's shows at Wembley Stadium in London next week. The plot in Austria also brought to mind a foiled plan by three IS-linked suspects to attack Vienna's gay pride parade last year.