U.S. diplomatic vehicle attacked by Mexican federal police

Mexican authorities investigate the attack that wounded two U.S. diplomatic personnel riding in an embassy vehicle south of Mexico City on Friday.  (Nuvia Reyes / AFP/Getty Images)

An SUV carrying U.S. Embassy officials was left riddled with bullet holes, its tires flattened, by an attack by Mexican federal police.  (Roberto Santini / EPA)

U.S. and Mexican authorities investigate the scene where two U.S. Embassy employees were shot when their vehicle was fired upon by Mexican federal police on a highway south of Mexico City last week.  (Tony Valdivia / Associated Press)

Relatives of federal police officers allegedly involved in last week’s shooting of a U.S. Embassy vehicle try to block the path of a van carrying the officers as it leaves the Mexican attorney general’s office in Cuernavaca, Mexico, on the way to a federal detention center Monday. A judge ruled that the 12 officers accused of firing on the vehicle should remain in detention.  (Tony Rivera / Associated Press)