A 19-year-old Austrian admitted to authorities that planned to kill himself and others at a Taylor Swift concert in Vienna.

The attack was to take place Thursday or Friday, officials said.

The teen was arrested by police Wednesday regarding the plot to target a Swift show at Ernst Happel Stadium. 

The suspect planned an attack on fans, which involved “bladed weapons as well as the construction of a bomb,”

a press release provided by the Vienna Federal Ministry of the Interior on Thursday read.

A search of the suspect’s home revealed “chemical substances, liquids, explosive and technical devices that could be used to manufacture explosives,” Franz Ruf, director general for public security, said. Bomb-making instructions were also allegedly found.

The suspect, who was not named, confessed to the allegations against him as well as swore allegiance to ISIS, according to officials.

A 17-year-old was also arrested. That teen was employed by a facility management company that was to be on duty during Swift’s concerts, officials said. 

A 15-year-old was also detained and questioned by police. As of now, officials are not searching for any more suspects.

“There is currently no information that other concerts are subject to an explicit threat,” Omar Haijawi-Pirchner, national intelligence head, said.

Swift has yet to publicly comment about the situation.

Swift canceled three of her Eras Tour shows in Vienna Wednesday. This was necessitated after there was news of the planned terrorist attack. 

Interior Minister Gerhard Karner said Thursday the situation “was serious and remains serious” and that a “tragedy was averted.”

“We have no choice but to cancel the three scheduled shows for everyone’s safety,” Barracuda Music, the promoter for the Austrian shows, said. “All tickets will be automatically refunded within the next 10 business days.”

Ruf said previously investigations revealed “preparatory actions” that the 19-year-old suspect “had a particular focus on the Taylor Swift concerts in Vienna.”