Jalisco state prosecutor Gerardo Octavio Solis said 13 or 14 people from the central Mexico state of Guanajuato had split up into two groups after arriving in Puerta Vallarta and then met up in the residential area, where they were confronted by attackers.

The son of imprisoned drug lord Joaquin "El Chapo" Guzman may be among the half-dozen men abducted by gunmen at a restaurant in the Mexican beach resort of Puerto Vallarta.