Third person in custody over foiled plot targeting Taylor Swift shows in Vienna

The concerts were called off in midweek (AP Photo/Heinz-Peter Bader)

Austrian authorities have announced a third arrest in connection with the foiled conspiracy to attack three now-cancelled Taylor Swift concerts.

The main suspect, a 19-year-old, planned to target onlookers gathered outside Ernst Happel Stadium – up to 30,000 each night, with another 65,000 inside the venue – with knives or home-made explosives during the concert on Thursday or Friday.