At least 18 people including a preteen boy have died in a single day of cartel violence in Ciudad Juarez.
Attorney General's office spokesman Arturo Sandoval said Tuesday was one of the bloodiest days of 2011 in the border town. At least 20 homicides were recorded there on Feb. 18.
He said among the 18 killings were three hospital parking attendants shot to death at midday by unidentified gunmen.
Later, gunmen opened fire on a youth soccer game, killing four people and leaving four others in critical condition.
Authorities also say a 12-year-old boy was followed into a restaurant by assailants and killed.
It is not immediately clear if the killings are related. Ciudad Juarez has been plagued by violence between warring cartels.