At least eight inmates of a prison in Mexico's central state of Jalisco have died following a violent clash on Friday.
Officials added that some died from bullet wounds while others were beaten to death.
Eight more prisoners have been hospitalised with minor injuries.
Authorities said a fight broke out as inmates participated in a sports activity.
Jail staff have recovered two firearms and a homemade explosive device, and detained five people for their alleged role in the incident.


Three killed in Russian strikes in Kyiv region, official says
Spain to establish border controls against Italy amid migration dispute
Thai teen kills 7 in rampage at home and school before shooting himself
US appeals court blocks Trump’s $400 million White House ballroom project
Spain dismantles one of Mediterranean's largest human smuggling networks
