Mexico : U.S. Embassy says the wounded Americans are in stable condition . Mexican Marines say Mexican forces opened fire on the U.S. Embassy vehicle . Moments later , three other vehicles carrying Federal Police joined the attack , also shooting at the U.S. Embassy vehicle . Two embassy employees -- said to be U.S. citizens -- were wounded .
Mexico : U.S. Embassy says the wounded Americans are in stable condition . Mexican Marines say Mexican forces opened fire on the U.S. Embassy vehicle . Two embassy employees -- said to be U.S. citizens -- were wounded .