MEXICO CITY (AP) — Mexican Federal Police have arrested a current and former investigator from the Mexico state prosecutors' office after they allegedly detained a man and extorted his family.

The Federal Police say in a statement Monday that authorities were contacted after the 35-year-old man was pulled over Saturday on the main highway between Mexico City and the state of Puebla and accused of being a fuel thief.

The investigators held the man and demanded money instead of taking him to the police station.

Federal police arrested the suspects after a meeting was arranged at a shopping center to ostensibly pay for the man's release.

Both agents were armed and driving an official vehicle.