A car plowed into a caravan of US-bound migrants traveling along a highway in southern Mexico on Thursday, killing three people including a girl, authorities said.
Seventeen more people were injured in the incident in Oaxaca state, the National Migration Institute said in a statement.
A man and a girl from Nicaragua and a woman from Ecuador were killed, it said.
Local media reported the driver had lost control of the vehicle.
Thousands of migrants fleeing violence and poverty travel across Mexico every year heading for the US border.
While some pay people smugglers to transport them in trucks, others join caravans undertaking the long journey on foot, enduring hunger, exhaustion and insecurity.
