Former Barcelona forward Ronaldinho and his brother Roberto Assis have been arrested in Paraguay over an adulterated passport, local police said on Friday.
"Football player Ronaldinho is accused of the use of a sham ID, the General Prosecutor's Office issued an arrest warrant for him and demands on pre-trial detention", the General Prosecutor's Office wrote on its Twitter page.
Meanwhile, pictures of Ronaldinho smiling with the policeman who arrested him have appeared on social media.
The General Prosecutor's Office later said that Ronaldinho and his brother, Roberto de Assis Moreira, had been detained.
"[Ronaldinho and his brother] have been transported to the Special Department of the National Police under the General Prosecutor's Office", the office said, adding that they would remain in custody until a court hearing.
Paraguayan prosecutors have already detained Ronaldinho's agent, Vilmondes Sousa Lira in connection with the case. All three defendants arrived in Asuncion on Wednesday where Ronaldinho planned to present his book and launch a charity campaign.
The former footballer said he was shocked by the situation, adding that he was a victim himself, without going into detail.
Ronaldinho is one of the most famous Brazilian football players. He won the 2002 FIFA World Cup, which was held in Japan and South Korea.