Immigration officials arrested nine suspected illegal immigrants on Wednesday at a sweep at the Greens Port Terminal, a cargo loading and unloading facility on the Houston Ship Channel.

Yolanda Choates, a spokeswoman for U.S. Customs and Border Protection, said the joint operation with local authorities also led to the arrest of a U.S. citizen with four outstanding criminal warrants.

Choates said she was unsure which company or companies employed the nine illegal immigration suspects found during the morning raid.

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