Continued from page 1

“Los Zetas, who have a major presence in Monterrey, are moving from criminal activities that target police, soldiers, judges, politicians - with ‘collateral damage’ to civilians- to acts of terrorism, the purposeful, indiscriminate killing of civilians,” he said.

U.S. Immigration and Customs Enforcement (ICE) Agent Jaime Zapata, 32, was fatally shot Feb. 15 during an ambush on Mexico’s major highway between Mexico City and Monterrey. Several Zetas have been arrested in that shooting.

Mexican police have arrested five reputed members of the Zetas in connection with the attack, all of whom reportedly have confessed.