Rats gnawed a Mexican newborn to death after her teen mom left the child home alone to go dancing, according to a report.

Lizbeth Jeronima Fuentes Munguia, 18, went out to kick up her heels at a dance-party in the town of Otumba, leaving her 4-month-old daughter at home in Acolman, near Mexico City on Monday night, MiMorelia.com reported.

When the mom arrived home early Tuesday, she found her daughter’s face, fingers and torso had been chewed by the ruthless rodents and alerted neighbors, according to the Attorney General of the State of Mexico.

The tot was pronounced dead by paramedics on the scene.

Munguia’s neighbor, Avenida Labour, later told authorities that the single mom left her baby alone for hours to attend the rager.

The mom told cops that the baby’s grandmother had been left in charge of the baby, the site reported.

The mother has yet to be charged for a crime.