Bad Blood: Radicalized Teens Arrested in Connection with Terror Plot at Taylor Swift Concert in Vienna, Officials Say

Taylor Swift's Eras Tour concerts in Vienna, Austria, have been canceled after authorities arrested two people suspected of planning a terror attack targeting the shows.

Although Police Chief Gerhard Pürstl said during an Aug. 7 press conference that "the concrete danger has been minimized" after the arrests and security at the concert venue and across Vienna would be enhanced, event organizer Barracuda Music announced the cancellation later that evening.

"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," Barracuda Music wrote in a statement posted on Instagram. The company said all tickets would be automatically refunded within 10 business days.

Swift was scheduled to perform at the Ernst-Happel-Stadion on Thursday, Friday and Saturday.

Austrian Chancellor Karl Nehammer called the cancellation a "bitter disappointment" for all Taylor Swift fans in Austria in a post on X, formerly Twitter.

"The situation surrounding the apparently planned terrorist attack in Vienna was very serious. Thanks to the intensive cooperation of our police and the newly established DSN with foreign services, the threat was recognized early, combated and a tragedy prevented," Nehammer said.

Franz Ruf, director-general for public safety in Austria's Ministry of the Interior, said one 19-year-old Austrian citizen was arrested Wednesday morning, and a second suspect was arrested in the afternoon.

Ruf said the suspects were allegedly radicalized online, with the 19-year-old allegedly pledging allegiance to the leader of the Islamic State (ISIS) last month.

The two suspects allegedly had detailed plans for an attack in Vienna, with the 19-year-old particularly focused on Swift's concert, Ruf said.

Never miss a story — sign up for the Front Page Detectives newsletter. Be on the scene the moment news breaks.

When the teen was taken into custody, bomb squad officers allegedly found chemical substances that could be used to build an explosive device.

U.S. officials familiar with the investigation told NBC News that Austrian authorities are still looking for an additional individual or individuals who may have had knowledge of the planned attacks.

TMX contributed to this report.