Taylor Swift's Vienna concerts as part of the ongoing Eras Tour were cancelled following intelligence input on alleged plotting for a terror attack at the venue, the show organisers said in a statement on Thursday.

“Taylor Swift The Eras Tour Vienna Shows Cancelled Due to Government Officials Confirmation of Planned Terrorist Attack. With confirmation from government officials of a planned terrorist attack at Ernst Happel Stadium, we have no choice but to cancel the three scheduled shows for everyone’s safety,” wrote organisers Barracuda Music on Instagram.

“All tickets will be automatically refunded within the next 10 business days,” the organisers further said.

Nearly 65,000 spectators were expected at each show scheduled for Thursday, Friday and Saturday.

The development came close on the heels of a 19-year-old Austrian citizen’s arrest on Wednesday morning, with a second suspect taken into custody later that afternoon.

During the ongoing European leg of the tour, the singer has so far performed in France, Sweden, Portugal, Spain, Scotland, Netherlands, Switzerland, Italy, Germany and Poland.

At the 100th show of the Eras Tour in England’s Liverpool, the 34-year-old pop singer announced the official end of the concert in December in Vancouver, Canada.

“This is the very first time I've ever acknowledged to myself and admitted that this tour is gonna end in December. Like, that's it," said Taylor.

Taylor Swift’s last released album, The Tortured Poets Department, has crossed one billion streams on Spotify. The album also became the most-streamed album on Amazon Music on the day of its release. It broke the record for the biggest pop album of all time in terms of first-day streams on Apple Music.