He revealed he answered numerous questions regarding the demonstrations that occurred after October’s elections but was never informed of any specific accusations behind the interrogation.
Mondlane, the claimed winner of the disputed election, mentioned being placed under judicial supervision.
Various international observer groups have reported that the election was marred by irregularities.
The election was followed by over two months of demonstrations and blockades that resulted in more than 300 deaths.
Mondlane has been named in eight cases opened by the public prosecutor’s office associated with the protests.
The majority of these cases pertain to the destruction of public property, while Mondlane has also been accused of ‘subversion and disturbance of public order’.
His supporters gathered outside the building where he was being questioned, but reports suggest that police dispersed them using teargas.