BRUSSELS, Aug. 7 (RT) – US pop mega-star Taylor Swift has canceled three upcoming concerts in Vienna, Austria after two suspects were arrested for allegedly planning terrorist attacks at the shows.

Swift was supposed to perform at Vienna’s Ernst Happel Stadium on August 8, 9, and 10 as part of her European leg of the Eras Tour. Venues across the continent have been sold out for weeks.

“With confirmation from government officials of a planned terrorist attack at Ernst Happel Stadium, we have no choice but to cancel the three scheduled shows for everyone’s safety,” concert promoter Barracuda Music said in an Instagram post. “All tickets will be automatically refunded within the next 10 business days.”

Austrian police arrested a 19-year-old who had pledged allegiance to Islamic State (IS, also known as ISIS) in Ternitz, a town south of Vienna. Another suspect was later detained in the capital.

Franz Ruf, director-general for public safety in the Austrian Ministry of the Interior, told reporters that the suspects were allegedly self-radicalized online, planned to attack Vienna, and expressed particular interest in Swift’s concerts.

The organizers expected 65,000 concertgoers at each show and an additional 10,000 to 15,000 fans outside the arena, police said. The risk justified raising security precautions, said Vienna police chief Gerhard Purst.

The 19-year-old suspect may have been building an explosive device, police said, and the chemical substances found at his home are currently being investigated. The names of the suspects have not been made public.

Swift embarked on the Eras Tour in March 2023, aiming to do 152 concerts across five continents, performing hits from her 17-year career. The 34-year-old songstress is expected to make $2 billion from the tour by the time it wraps up in December.