A baby and his parents were killed outside a store in the municipality of Pinotepa Nacional, in the coastal region of the state of Oaxaca.
According to reports, the victims are 24-year-old Juan Alberto Pano Ramos, a 17-year-old woman and the seven-month-old baby.
So far, the authorities have not determined the reasons for the killing or the identity of the perpetrators.
In the meantime, the incident has caused a strong reaction on the social networks.