Justin Bieber -- Judge Orders Arrest in Argentinian Assault Case

Justin Bieber will be arrested if he dares to travel to Argentina, because a Buenos Aires judge has put the word out to police ... Bieber's a wanted man.

You may recall, a photog claimed Bieber ordered his bodyguards to attack him in November 2013, as the singer left a club. Bieber had been ordered to appear for questioning in November but apparently that never happened.

The judge who issued the most recent order on April 8 said, "I consider it pertinent to order the immediate detention of the accused."

Bieber's reps have said the case has been resolved, but apparently the judge doesn't see it that way.