The entire police force in the violent Mexican border city of Ciudad Juárez was ordered to leave their homes and stay in a hotel for their safety after the recent killing of five officers by a local drug cartel.
The gang threatened a week ago to kill one policeman a day unless Police Chief Julian Leyzaola resigns.
Juárez Mayor Héctor Murguía said Wednesday that the attacks carried out since the warning are a response to toughening police action against drug cartels in the city across from El Paso, Texas.
The mayor said there is no way Leyzaola is stepping down. He said most of the officers are "angry because of the attacks," but are deeply committed to fighting crime.