BUENOS AIRES, Argentina (AP) — An investigative judge in Argentina is summoning Justin Bieber for questioning.

Bieber has been accused of sending bodyguards to attack a photographer outside a Buenos Aires nightclub during a South American tour last year. Judge Facundo Cubas asked Interpol on Thursday to use all “necessary means” to notify the singer that he has 60 days to appear before the court in Argentina. The judge says that if Bieber fails to comply, an international arrest order will be issued.

Argentine photographer Diego Pesoa alleges he was chased down and beaten on Nov. 9, 2013, by Bieber’s bodyguards outside the INK nightclub, where the singer and his entourage partied.

Bieber would face up to one year in prison if he was convicted on a charge of causing minor injuries.