MEXICO CITY (AP) — Hundreds of Mexican police, soldiers and government inspectors raided 11 iron ore yards at one of the country’s largest seaports, following revelations that drug cartels had been exporting ore to China.

Authorities seized almost 120,000 tons of ore as well as 124 bulldozers, backhoes, milling equipment and trucks as a result of Monday’s raid on at the Pacific coast seaport of Lazaro Cardenas.