U2’s concert in Stockholm, Sweden tonight was evacuated and cancelled due to a security threat, NME reports. Although initial reports mentioned unconfirmed rumors of a bomb threat against the arena, local media sources are now referencing only an unspecified “security breach.” According to Swedish paper Aftonbladet, venue security was checking under the venue’s seats, and police are said to be searching for a specific individual. Aftonbladet’s sources say that police were called to the arena after organizers let a man armed with a gun, who claimed to be an off-duty police officer, into the venue. At this time, no suspect has been taken into custody, and the show has been rescheduled for this coming Tuesday (9/22). Read a statement issued by U2 on the band’s official website below:

Due to a security breach, Stockholm’s The Globen evacuated the audience from the building this evening.

As the breach has not been resolved quickly and as audience safety is paramount, the police have advised The Globen and Live Nation that they have no option but to postpone tonight’s show, to a rescheduled date of Tuesday 22nd September.

All tickets from Sunday 20th September are valid for Tuesday 22nd September.

The organizers apologize for the inconvenience caused and thank the audience for their understanding. Their safety is the priority.