The European Prosecutor's Office is inspecting the municipality of Simitli.
The press center of the Ministry of Internal Affairs confirmed the action, but did not provide more information, as they are cooperating with the prosecutor's office, BNT specified.
The specialized operation started this morning at the administration.
According to unofficial information, documents are being checked.
At the moment, the mayor of the Apostol Apostol municipality is not picking up the phone for comment.
He is a long-term mayor of Simitli. His son Stefan Apostolov, a former elite football referee, is a member of parliament from GERB.