 At least 19 people have been killed in a clash between drug gangs in the southern Mexican state of Chiapas. Their decaying bodies were found in and around an abandoned truck in the municipality of La Concordia near the Guatemalan border. At least four of the dead were Guatemalans. The Mexican Ministry of Public Safety said the clash was between the powerful Sinaloa cartel and another gang calling itself the Chiapas and Guatemala cartel. You're listening to the latest world news from the BBC.