(KGNS) - Laredo police say two members of a criminal prison gang are under arrest in a case involving federal investigators.

Juan Gilberto Garcia, 42, and Adrian Vicente Barbosa, 41, are charged with aggravated robbery, a first-degree felony.

Police say the investigation began after officers received a report of an aggravated robbery involving the theft of personal property and a subsequent demand for a large sum of money.