Members of the Jalisco Forensic Medical Service arrive during a confrontation in El Salto, Jalisco state, Mexico. AFP
The clash happened on Wednesday night at a house in El Salto on the outskirts of the city of Guadalajara and, according to witnesses, lasted for more than an hour.
Following the shootout, the bodies of nine people, including a woman, were found inside the building, state prosecutors said.
Two people being held captive inside the building were rescued following a tip-off that gunmen had been seen taking gagged people into the house, prosecutor Luis Mendez Ruiz told reporters.
Members of the Mexican Army stand guard at the site in a confrontation in El Salto, Jalisco state, Mexico. AFP
Several people were arrested, and weapons and ammunition were seized.
Ten police officers have been murdered this year in Jalisco, one of Mexico's most violent states due to the presence of criminal gangs, according to official figures.
The western region, one of the country's most prosperous, is the cradle of the powerful Jalisco New Generation Cartel, which authorities blame for numerous deaths and disappearances.
Its leader, Nemesio "El Mencho" Oseguera, is one of the world's most wanted drug lords, with the US Drug Enforcement Administration offering $10 million for his arrest.
More than 340,000 people have been killed in a spiral of bloodshed in Mexico since the government deployed the army to fight drug cartels in 2006.
A six-member African gang was prosecuted by Dubai Courts on kidnapping, assault and robbery charges after they held a man hostage and poured hot water on him to steal his money.
The victim testified that he was lured through a fake online massage service, and discovered that he was tricked later on.
The dead included two officers and six people believed to have been held captive in a house in Tlaquepaque, Jalisco state, the state prosecutor's office said. Another man died on the street.
General Abdullah reaffirmed the Dubai Police's determination and keenness to strengthen action and cooperation to achieve the goal of an international society free of drug abuse.
Train companies said only a fifth of passenger services would run, as about 40,000 cleaners, signalers, maintenance workers and station staff walked off the job in Britain’s biggest and most disruptive railway strike for 30 years.
The anniversary is one of the highest-profile political events in a year when Xi is widely believed to be trying to break with tradition and award himself a third five-year term as party leader.