After reportedly being tortured and executed, their bodies were abandoned in the middle of the road where the police also found bullet casings.
The blindfolded women were face down with their hands and feet tied while bullet holes and knife wounds were found on their necks, according to the local authorities.
Reports said that the state of Tamaulipas is experiencing a crime wave caused by warring gangs, including the Cartel Del Noreste and the Gulf Cartel.
It is currently unclear why the two women were killed, but local media report the police have a hypothesis which suggests they became confused with being members of a criminal group after posting the fake gun photo on social media.
No arrests have been made yet and the investigation is ongoing.