Read more: Local, State, Crime, Mexico, Ciudad Juarez, Mexico's Governer, Chihuahua, Drug Cartel, Juarez, Rio Grande, Mexico
CIUDAD JUAREZ, MEXICO (AP) -- New signs have cropped up around the violent Mexican border city of Ciudad Juarez.
The signs applaud the resignation of Juarez police Chief Roberto Orduna.
They also threaten to behead Mayor Jose Reyes Ferriz and his family -- including those living across the border in Texas -- if he continued, quote, "helping you know who."
The sign posters didn't specify who "you know who" is.
The chief resigned last week after crime gang threats to kill at least one of his officers every 48 hours.
Gunmen then killed one of his officers and a Juarez jailer.
Sunday night, gunmen sprayed bullets on a convoy in the city of Chihuahua carrying Chihuahua's state governor, killing one of his bodyguards and wounding two other agents.
One of the attackers was hospitalized with a gunshot to the head.
The other attackers fled.
Federal officials say more than 6,000 people died in drug-related violence across Mexico last year.
No state suffered more than Chihuahua and its largest city, Juarez.
The border city across Rio Grande from El Paso, Texas, recorded 1,600 killings alone.
(Copyright ©2009 by The Associated Press. All Rights Reserved.)
