In a resolution released today, Judge Alberto Julio Banos ordered the "immediate detention" of Bieber and bodyguards Hugo Alcides Hesny and Terrence Reche Smalls.
Bieber is accused of sending the bodyguards to attack photographer Diego Pesoa outside a Buenos Aires nightclub. Bieber never returned to Argentina to respond to questions about the incident.
Under Argentine law, Bieber would face from one month to six years in prison if convicted on a charge of causing injuries.