Authorities in Austria have forced the cancellation of 3 shows in Vienna scheduled for this weekend after revealing a terror plot involving ISIS at Ernst.

Two teenagers have been arrested for allegedly plotting to use chemicals, explosives, and knives at one of the three scheduled shows. Authorities have said the 19 year old planned to “kill himself and a large crowd at the concert either today or tomorrow”. A 17 year old suspect had also reportedly starting working for the venue just days before set up for the show began.

Fans have been left disappointed by this, with many paying several thousands of dollars for tickets. But the city of Vienna will take a massive economic hit. Taylor Swift shows are known to generate a major economic boost for cities she visits.

Swift is still scheduled to appear at Wembley Stadium in London next week.