The truck was “irregularly” transporting 27 Cuban nationals on the Pijijiapan-Tonalá highway in the southern state of Chiapas when the accident occurred, Mexico’s National Migration Institute (INM) said in a statement.
Officials said initial reports suggested the driver had been speeding and lost control of the unit, fleeing the scene after it overturned.
The 10 victims were female and included a minor, authorities said. All the injured are being treated in hospital.
“The INM will establish communication with the consular authorities to initiate the administrative process for the repatriation of the bodies to their country of origin and is aware of the evolution of the health status of those seriously injured,” the statement said.
Migrants from Central America and the Caribbean sometimes travel through Mexico in trucks and trailers in the hope of reaching the United States.
In 2021, 55 people were killed and more than 100 injured when a truck also believed to be carrying migrants overturned in Chiapas state, which borders Guatemala.
CNN’s Susannah Cullinane contributed to this report.