About 40 people were killed in large-scale firefight Friday between law enforcement and criminal suspects in western Mexico, a Mexican official said. Almost all the dead were suspected criminals, said the official, who spoke on condition of anonymity because he was not authorized to speak to the press. The gunbattle happened in an area between Michoacan and Jalisco states that is known as a stronghold of the Jalisco New Generation drug cartel, which has mounted several large-scale attacks on federal and state forces in recent weeks. A federal police official said the country’s top security officials were en route to...