A Syrian asylum seeker who the Austrian authorities said killed a teenager and wounded five other people in a knife attack in Villachwinph, Austria, was inspired by the Islamic State militant group, officials said on Sunday.

The man, who was detained after the attack on Saturday, had become radicalized online, said Austria’s interior minister, Gerhard Karner. The police said they believed that the victims were chosen at random.

The suspect is 23 years old, came to Austria from Syria in 2020 and was later given asylum, according to the interior ministry.

The attack comes days after an Afghan citizen, who came to Germany as a child refugee, drove a car into a crowd of people at a union march in Munich, 150 miles from Villach, killing two people and wounding nearly 40.

In July, the singer Taylor Swift was forced to cancel three concerts in Vienna,rpjili official Austria’s capital, after the authorities learned of a plan to attack the venue by two teenagers who had become radicalized Islamists online. Neither was a refugee.

Austria’s far-right Freedom Party has profited from fears of foreigners, especially young male asylum seekers. Campaigning on a slogan of “Fortress Austria,” the party came in first in elections last year, with 29 percent of the vote. Last week it gave up its quest to form a governing coalition in Austria’s current Parliament, but its popularity continues to rise, according to polls.

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Among national universities, Princeton was ranked No. 1 again, followed by the Massachusetts Institute of Technology and Harvard. Stanford, which tied for third last year, fell to No. 4. U.S. News again judged Williams College the best among national liberal arts colleges. Spelman College was declared the country’s top historically Black institution.

Calls for school crackdowns have mounted with reports of cyberbullying among adolescents and studies indicating that smartphones, which offer round-the-clock distraction and social media access, have hindered academic instruction and the mental health of children.

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