Prosecutors said at least 10 gunmen stormed the Chihuahua bar Friday night . The attack left six people dead and seven others wounded, including a police officer, authorities said. The gunmen were dressed in police uniforms , state prosecutors said .
Prosecutors said at least 10 gunmen stormed the Chihuahua bar Friday night . Among the dead were two journalists . The gunmen were dressed in police uniforms , state prosecutors said .