Authorities believe assassins targeted a pregnant woman and two other people connected with a U.S. consulate who were killed in drive-by shootings over the weekend, Ciudad Juarez Mayor Jose Reyes Ferriz said Monday.
The killings were carried out by a local gang, known as Los Aztecas, that is allied with the Juarez Cartel, Reyes told CNN. No arrests had been made by Monday afternoon.
"We know that the U.S. citizens were targeted," Reyes told CNN, saying a police officer saw gunfire from a car directed at the Americans' car. "We know they were chasing them. We know they wanted to kill them."
Two of the victims were a four-months-pregnant employee of the consulate in Juarez and her U.S. citizen husband who was a jailer in nearby El Paso, Texas, U.S. and Mexican officials said. The couple's 10-month-old child, who was in the vehicle, was not injured, Reyes and other officials said.
- CNN's Arthur Brice, Mariano Castillo and Jamie Crawford contributed to this report.