A radio news host has been killed in southern Mexico, bringing to at least 32 the number of journalists killed during the administration of President Enrique Pena Nieto, which began in December 2012.

The governor of the Gulf coast state of Tabasco says radio host Juan Carlos Huerta was shot to death by assailants travelling in a vehicle.

Gov. Arturo Nunez said Tuesday that the killing does not seem to be random or robbery-related. Nunez said "they apparently went to execute him."

The killing occurred as Huerta left his home in Villahermosa, the Tabasco state capital.

Mexico is one of the most dangerous countries in the world for journalists.