The U.S. State Department has issued the highest-level travel warning for some Mexican towns next to the U.S.–Mexico border because of elevated risks over kidnappings, gun battles, and improvised explosive devices (IEDs).
A bulletin released by the U.S. Embassy and Consulates in Mexico stated that a “Level 4 - Do Not Travel” advisory has been issued for parts of Tamaulipas state. It cites Reynosa, Rio Bravo, Valle Hermoso, and San Fernando as places where IEDs have been found. The area borders the Rio Grande Valley in Texas.