WATCH: 'Motosicarios' Chase and Kill Two Men in Popular Mexican Tourist Destination

Videos circulating online show the violent murder of two men on a motorcycle. They were chased down and killed by two gunmen also riding a motorcycle near San Cristóbal de las Casas, a popular tourist destination in Chiapas, Mexico's southernmost state, on Sunday night.

Local journalist Isaín Mandujano shared footage from a neighborhood security camera that captured the victims riding a shared motorcycle along an empty street at 8:22 p.m. Seconds later, another motorcycle accelerates toward them. The victims slow down and glance back before attempting to escape, but the gunmen open fire as they pass by.

More than eight gunshots are heard immediately after the gunmen reach the victims, followed by additional shots as they drive away. Seconds later, screams and repeated cries for help echo through the street. The entire incident unfolded in less than one minute, per the video's timestamp.

A separate video shows neighbors coming out of their houses and rushing toward the wounded men, who succumbed to their injuries shortly after. Local, state, and federal authorities responded to the incident, blocking the streets as they initiated the double homicide investigation.

Mandujano also shared blurred photos of the victim's bodies lying on the pavement next to their blue motorcycle. As of Monday morning, the identities of the assailants and their motives remain unknown. The victims' identities have not yet been disclosed. Their bodies were transported to the Forensic Service for their families to claim.

Mexican authorities confirmed hours before the shooting the arrest of David "N," alleged leader of a motorcycle criminal group referred to as Los Motonetos, per Infobae. The group has been linked to various violent crimes and shootings in the area. It is unknown if the arrest of this individual is connected to the shooting.