MEXICO CITY — Ten people were killed and 61 injured on Monday morning when a cargo train crashed into a double-decker passenger bus in central Mexico, authorities said, one of the latest and most lethal accidents as the country expands its railroad network.

The accident occurred in the industrial zone of the Atlacomulco municipality, which is roughly a two-hour drive northwest of Mexico City. The bus was headed from a small town in Mexico state to Mexico City, according to local reports.

The state attorney general’s office was investigating the accident. It said that seven women and three men had died at the scene.

“We join in the grief of the families and friends of the victims and extend our sincere condolences,” a statement by the local municipality said.

Though authorities did not

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