The teen is pictured for the first time

A teenager accused of plotting to slaughter Taylor Swift fans by driving into a crowd outside her concert and then detonate his suicide vest has been pictured for the first time.

A photo of the 19-year-old main suspect, known only as Beran A, at press conference at the Foreign Ministry in Vienna today. He can be seen posing with two large knives with a pin of an ISIS flag on his T-shirt. Authorities arrested two suspected extremists, one of whom appeared to be planning an attack on the event in the Vienna area.

Beran A was hired by the security company, it is understood. His plan was reportedly to attack the blue flashing police light to his VW Beetle and to disguise himself as a police officer to get as close to the stadium as possible before running over as many Swifties as he can, before attacking them with knives and machetes and detonating his suicide bomb.

Beran A, was arrested in Ternitz, south of Vienna, and the second person in the Austrian capital. The 19-year-old’s arrest took place in the early hours of Wednesday, while the second arrest took place in Vienna later in the day.

Ms Swift had been due to play to 170,000 fans over the course of three nights in Vienna before organisers Barracuda Music announced that the event had been cancelled. She was set to perform at the Ernst Happel Stadium on Thursday, Friday and Saturday, and is next due to play five dates at London’s Wembley Stadium between Thursday, August 15 and Tuesday, August 20.

The singer, 34, is said to be “horrified” at the thought of the terror attack being successful after the tragedy of Ariana Grande’s devastating Manchester gig. She has also issued a promise to her team as she is conscious about her “disappointed” fans.

In an Instagram post late on Wednesday, Barracuda Music said they had no choice but to axe the shows: “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.”

Before the decision was taken to cancel the three shows, Ruf had said security at the concerts would be increased following the alleged terror threat. Police said the shows were expected to draw 65,000 concertgoers per day, with an additional 10,000 to 15,000 fans outside of the area.

London Mayor Sadiq Khan said the city will “carry on”, telling Sky News: “We are a capital city, we are an international city, on a regular basis we host major events, whether it’s concerts – Bruce Springsteen was most recently at Wembley Stadium – we’re looking forward to welcoming Taylor Swift back.

“I’m currently at (Chelsea’s football stadium) Stamford Bridge. Every other week there’s a game taking place. We have a huge amount of experience in policing these events, we’re never complacent, many lessons were learnt after the awful Manchester Arena attack.

“The police work closely, not just with City Hall, but with councils, but also with those who host concerts, like the Taylor Swift concert coming up over the next couple of weeks.”

A source told The Mirror: “Taylor has been devastated by this. She is devastated for the fans who have been waiting for years to see her. But the thought of what could have happened if the concerts had been targeted by a terror attack is horrifying, and she would never risk the safety of her fans.

“The memory of what happened at Ariana Grande’s concert in Manchester is still very vivid in everyone’s minds. But she has told her team that she wants to try to return to Vienna as soon as possible in the future. She is very conscious of how disappointed her fans in Austria are.”