Three Taylor Swift concerts in Vienna were canceled after Austrian authorities detained four teenagers suspected of planning a terrorist attack.

One suspect, who shared Islamist propaganda online, pledged allegiance to IS and had sympathies for Al Qaeda.

During a home search, authorities seized bomb-making materials, Islamic State propaganda, €21,000 in counterfeit money, machetes, knives, and blank ammunition.

Police also detained an 18-year-old Iraqi national who had sworn allegiance to IS on August 6, the interior ministry said, however his direct link to the attack plans is unclear.

#TaylorSwift #Concert #Vienna #Austria