(CNN) -- Two people were killed and one more injured when gunmen opened fire at a political rally in southern Mexico on Saturday afternoon, authorities said.
The attack happened when supporters of opposing political parties got into a shouting match in Nachig village in Chiapas state, according to the state's office of security and protection.
Shots were fired from a moving car, hitting supporters of the Institutional Revolutionary Party (PRI).
A riot targeting the opposing Democratic Revolution Party (PRD) ensued and an angry mob set fire to at least five homes and more than 20 vehicles, the state's office said.
Rioters also held about 60 men and 40 women hostage in one house, threatening to lynch them, the state's office said.
State police stormed into the village, which is home to about 400 hundred families, and rescued them, authorities said.
The gunmen are still at large and no arrests have been made.