Two men who prosecutors identified as U.S. citizens were shot to death in their vehicle early Monday as they waited at a Tijuana-area border crossing to enter the United States.
Prosecutors in Baja California state quote witnesses as saying a gunman approached the line of vehicles waiting at the San Ysidro border crossing and fired into the men's pickup truck, hitting the victims in the head, arms and body.
The state Attorney General's Office says the men were U.S. citizens aged 25 and 28. The U.S. consulate in Tijuana did not immediately return phone calls seeking confirmation. There was no immediate information on their hometowns.
Investigators said they found 9-mm shell casings at the scene. That ammunition is used in weapons favored by drug cartel gunmen in Mexico.
The shooting occurred before dawn Monday. The men's pickup had California plates. Both victims were dead by the time authorities arrived.