(Reuters) - Immigration arrests at the Agriprocessors Inc meat plant in Postville, Iowa, totaled 390, making it the largest number of such arrests at a single U.S. location, an immigration official said on Tuesday.

"Every one of the 390 were arrested for administrative immigration violations. They were arrested for being in the country illegally," said Tim Counts, spokesman for the U.S. Immigration and Customs Enforcement (ICE) unit, which led the raid on the plant on Monday.

Criminal charges may still be filed against some of the 390, said Counts.

Of those arrested 314 were men. Also 290 were Guatemalan, 93 Mexican, four Ukrainian, and three Israeli, said Counts.

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