Mexican authorities say gunmen killed four people outside a locksmith's shop in the violent border city of Ciudad Juarez.Chihuahua state prosecutor's spokesman Arturo Sandoval says two 14-year-old boys are among the dead. A fifth victim was wounded in Wednesday's shooting.
Ciudad Juarez, across the border from El Paso, Texas, is Mexico's deadliest city. More than 1,900 people have been killed there this year.
Authorities attribute the violence to a turf battle between the Juarez and Sinaloa drug cartels.