URGENT - Mexico-Missing-Chief

Published On: Feb 19 2013 12:07:40 PM EST

(CNN) -- The police chief of the violent Mexican border town of Nuevo Laredo, Mexico, has been missing for days and state authorities have launched an investigation into his whereabouts, the state Attorney General's Office told CNN Tuesday. Roberto Alejandro Balmori Garza was last seen over the weekend, according to spokesman Ruben Dario Rios.