Villagers say the drug bust that left four passengers of a riverboat dead after helicopters mistakenly fired on civilians continued into the predawn hours when commandos, including some they think were Americans, raided their town.

One chopper landed in front of Hilaria Zavala's home at about 3 a.m. and the six men who got out kicked down her door. She said a "gringo" threw her husband on the ground and put a gun to his head demanding to know about a trafficker named "El Renco."