(CNN) -- Three children were killed Wednesday night by a group of armed men who were looking for the father of two of the girls, a spokesman for the Chihuahua state prosecutor's office said Thursday.
Earlier, Mexico's state-run Notimex news agency reported that six children were shot and that two died, but the prosecutor's spokesman, Arturo Sandoval, said that was incorrect.
"The intended target of the attack was the father of two of the minors," Sandoval said. "The father was involved in drug sales, and the group of armed men came to the house to kill him. That was the motive for the attack."
"All three minors died. There were no survivors."
One of the girls was 12-years-old, Sandoval said, and the other two were teenagers.
Juarez is one of the deadliest cities in Mexico and one of the front lines on the government's war against the drug cartels. It is a territory contested by the Juarez cartel and Sinaloa cartel, who are fighting for lucrative smuggling routes into the United States.