Austria Police Arrest Islamic State Sympathiser With Focus on Taylor Swift Vienna Concerts

Authorities had earlier confirmed the arrest of a 19-year-old sympathiser of the armed group for allegedly planning an attack in the Vienna region, warning he had a "focus" on Swift's three upcoming shows.

"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 said on Instagram.

The organisers added that all ticket holders would receive refunds. About 65,000 spectators were expected at each show scheduled for Thursday, Friday and Saturday.