On January 7, In the city of Río Bravo, Tamaulipas, Federal Police forces spotted and began to pursuit a group of armed men.

[6] In the municipality of Miguel Alemán, Tamaulipas, on February 7, soldiers from the army's 1st Special Forces Battalion carrying out a recon mission spotted a suspect aboard a Grand Cherokee.

[8] On April 30, acting on an anonymous tip, Army personnel from the 1st Motorized Cavalry Regiment in the city of Ciudad Mier were fired upon by gunmen who fled.

Subsequently, one cavalry soldier died while three others were injured and transported to the Regional Military Hospital in Monterrey.

[10][11] On January 7, gunmen fired on and threw grenades at the Televisa TV station in Monterrey during a nightly newscast, causing no injuries.

[15] An ex-Special Forces soldier of the Guatemalan Army known as Kaibiles and assumed leader of the Oaxaca state chapter of Los Zetas Israel Nava Cortez a.k.a.

[16] On April 30, Federal Police captured Gregorio Sauceda Gamboa, an influential figure in Los Zetas, in the city of Matamoros.