Austrian authorities arrested a 19-year-old man for allegedly planning an Islamist attack related to upcoming Taylor Swift concerts in Vienna. The suspect, who has recently pledged allegiance to ISIS, was detained in Lower Austria and is under strong suspicion of terrorism, according to security chief Franz Ruf. Chemical substances were found at his home, raising concerns about potential bomb-making. A second person, believed to have been in contact with the suspect, was also arrested. With each concert expected to draw around 65,000 attendees, police have increased security measures in the region while assessing the ongoing threats. Past incidents, including a deadly attack in 2020 linked to ISIS, highlight the serious nature of such threats in Austria.