VIENNA (AP) 鈥 Pricey tickets for sold-out Taylor Swift concerts in Vienna. Hundreds of euros, if not more, dropped on flights and hotels. Tens of thousands of Swifties, bedecked in homemade friendship bracelets, devastated by the cancellations of three Eras Tour shows in Austria after authorities foiled an apparent attack plot.

Austrian security officials said two young men wanted to commit an attack outside the stadium, killing as many people as possible using knives or self-made explosives.

Concert organizers said they they expected up to 65,000 fans inside Ernst Happel Stadium at each concert and as many as 30,000 onlookers outside, where authorities said the suspects planned to strike.

The venue sat empty Thursday morning aside from media filming outside. But later in the day on Corneliusgasse 鈥 a small street just 5 kilometers (3 miles) from the stadium 鈥 fans flocked to trade friendship bracelets and commiserate about the cancellations. The beaded bracelets, typically bearing Swift鈥檚 song titles or popular phrases, are usually swapped at concerts with strangers.

The fans gathered on Corneliusgasse specifically because the street name echoes 鈥淐ornelia Street,鈥 the name of a contemplative synth-pop track from Swift鈥檚 2019 album, 鈥淟over.鈥

The title refers to a street in New York City鈥檚 Greenwich Village, where Swift rented a luxury apartment in 2016 and fans now visit to take selfies. 鈥淎nd I hope I never lose you, hope it never ends,鈥 she sings in the song鈥檚 chorus. 鈥淚鈥檇 never walk Cornelia Street again.鈥

Swift has not spoken publicly about the plot or canceled shows. 鈥淭aylor Nation,鈥 a verified Instagram page widely believed to be run by her team, re-posted the announcement from concert organizer Barracuda Music in a 鈥渟tory,鈥 which is only visible for 24 hours. Her main account has not posted anything.

Both suspects appeared to be inspired by the Islamic State group and al-Qaida, authorities said. The main suspect, aged 19, had also posted an oath of allegiance online to the current leader of the Islamic State group, authorities said. The suspects鈥 names were not released in line with Austrian privacy rules.

The news rattled the superstar's fans, many of whom took to social media to express their devastation at missing out.

Others, however, begged online for tickets to next shows. She is expected to perform at London鈥檚 Wembley stadium in five concerts between Aug. 15 and 20 to close the European leg of her record-setting Eras Tour.

London Mayor Sadiq Khan said officials have learned lessons from a 2017 attack during an Ariana Grande concert at northwest England's Manchester Arena in which a suicide bomber killed 22 people. Khan said Thursday that this month's Swift shows will go on.

Karoline Pedersen of Norway planned to go to a London concert 鈥 she already saw Swift in May at a Sweden show 鈥 but now has second thoughts even though police there say the Austrian plot has no link to the U.K.

鈥淚t is not pleasant to have to look over one鈥檚 shoulder. It angers me that a concert like this, where millions of girls have said they actually feel safe, should be turned into a place of fear," Pedersen told NRK.

Some North American fans have ," a pattern that emerged during Beyonc茅鈥檚 . The phenomenon occurred when fans noticed that tighter and resales in Europe made it no more costly 鈥 and potentially cheaper 鈥 to see Swift perform abroad rather than .

Andrew Strauss and his mother, Alison Strauss, heard about the plot Wednesday while sipping wine at a New Jersey airport bar. Suddenly, the 34-year-old's cellphone 鈥渟tarted blowing up.鈥欌

鈥淚 was like, 鈥榳ait, why are all these people texting me broken heart emojis?鈥欌欌 he told The Associated Press from Vienna on Thursday. 鈥淎nd then I went on Twitter and I looked at my mom and I was like, 'I think the concert is canceled.鈥 "

The pair were on a direct flight to Austria and 鈥測ou could see it, like, ripple through people finding out,鈥 he said.

While he has already seen Swift in concert, his mother has not. The show was the start of a European vacation with other family members so they decided to stay in Vienna anyway.

鈥淚 actually want to write to her and tell her: 鈥楾his was a great mother-son event. Can you get me tickets in the U.S. for one of the concerts?鈥欌 Alison Strauss, 62, said.

The pair said they still support Swift and believe the concert organizers made the correct decision.

鈥淚t鈥檚 not in her nature to put anybody in danger,鈥 Alison Strauss said. 鈥淎nd to play three sold-out concerts is probably way too much to risk.鈥

鈥斺赌斺赌

Dazio reported from Berlin and Kirka reported from London. Associated Press writers Geir Moulson and Kirsten Grieshaber in Berlin; Jan M. Olsen in Copenhagen, Denmark; and Maria Sherman in New York contributed to this report.

The 好色tv Press. All rights reserved.