TUXTLA GUTIERREZ, Mexico – Police in Mexico's southern Chiapas state found 513 migrants on Tuesday inside two trailer trucks bound for the United States.
Hundreds of thousands of migrants travel through Mexico each year in the hopes of reaching the United States, but this was the largest group rescued in recent years.
Chiapas state police discovered the migrants while using X-ray equipment on the trucks at a checkpoint in the outskirts of city of Tuxtla Gutierrez, the National Immigration Institute said in a statement.
Police also arrested four people accused of smuggling the migrants, who are from Central and South America and Asia, Chiapas state prosecutors said in a statement.
The alleged smugglers tried to escape police but were chased down and captured, prosecutors said.
The immigration institute said 410 of the migrants were from Guatemala, 47 from El Salvador, 32 from Ecuador, 12 from India, six from Nepal, three from China and one each from Japan, the Dominican Republic and Honduras. There were 32 women and four children among them.
The migrants told authorities they had agreed to pay $7,000 to be taken to the United States, the institute said.
In January, Chiapas state authorities discovered 219 migrants squeezed into a trailer truck.
Most of those migrants were from Central America but six were from Sri Lanka and four from Nepal.