The singer's three concerts in the city this week have been cancelled.
A third teenager's been arrested over a foiled terror attack targeting Taylor Swift's shows in Vienna.
Austrian authorities say the 18 year-old was taken into custody because he'd been in contact with the suspected ringleader.
The singer's three concerts in the city this week were cancelled on Tuesday because of a plot allegedly inspired by Islamic State and Al-Qaida.

Government Transport Costs Top €8 Million Over Past Year
Record Crowds Take Part In 2026 VHI Women's Mini Marathon
Hallgrimsson Against Israel Boycott As Nations League Debate Continues
Significant DART Closures Expected This Weekend
People Urged To Use A Meat Thermometer For Barbecue Meats As Bank Holiday Approaches
Yuno Energy Increasing Electricity And Gas Prices
Stab Wounds Discovered On Woman Who Was Found Dead In Galway Yesterday
Homelessness Figures In Kildare Drop Slightly In Month Of April