| Updated at: 0406 PST, Friday, October 29, 2010|
GUADALAJARA: Seven Mexican police officers were shot and killed Thursday in a highway ambush in eastern Jalisco state, a local official said.
"There are seven police officers killed" in Jilotlan de los Dolores, 250 kilometers (155 miles) south of Jalisco's capital Guadalajara, a Public Security Agency official told media.
Requesting anonymity, the official said the police officers were attacked by a group of gunmen while traveling on a highway in the township.
The ambush added to earlier bloodshed linked to Mexico's relentless drug gang violence on Thursday, which already saw six people shot dead in Mexico City and four factory workers -- including three women -- killed in Mexico's most violent city of Ciudad Juarez in the north.
Elsewhere, five people were injured when a hand grenade went off in Zapopan, near Guadalajara, local police reported. The explosion caused extensive damage to vehicles and buildings in the vicinity, they added.
More than 100 people have been killed in less than a week across Mexico, including three mass slayings: 15 recovering drug addicts killed at a car wash in Tepic, 13 others gunned down at a Tijuana drug rehabilitation center and 14 people, mostly teenagers, murdered at a birthday party in Ciudad Juarez.