Four American citizens are missing after being assaulted and kidnapped from a vehicle by unidentified armed men in Mexico, the FBI said in a statement.
The Americans came under gunfire from the men shortly after crossing the border on Friday through the city of Matamoros, in the Tamaulipas state, across from Brownsville, Texas, Special Agent Oliver Rich, who is in charge of the FBI's San Antonio Division, announced Sunday.
The victims crossed into Mexico driving a white minivan with North Carolina license plates, the FBI said. Shortly after, the gunmen fired upon the passengers in the vehicle, and the four Americans were placed in another vehicle and taken from the scene by the men.
Law enforcement has not released the names of those who they said were kidnapped.