Paris prosecutors say two teenage girls suspected of plotting an attack against a Parisian concert hall have been arrested and presented to a judge.

The Paris prosecutors' office said in a message to the AP that the girls aged 15 and 17 were arrested by counterterrorism agents as part of an investigation for criminal conspiracy in connection with a terrorist enterprise.

Prosecutors said early investigations indicate the girls' project appears to have still been in the thinking stage as no weapon or explosives were found. Prosecutors have requested that the youngest girl be placed in temporary custody and the other under judicial control.

The arrests came nearly four months after the deadly attacks at the Bataclan concert hall and other locations in Paris that left 130 people dead.