125 workers employed at the construction site of a new Wal-mart distribuition center near Pottsville, Pennsylvania. The workers were from Mexico, Costa Rica, El Salvador, Guatemala and Honduras, and some used fake documents to obtain employment with subcontractors, officials said. The arrests came after search warrants were executed for six companies at the site.

Agents obtained the search warrants after learning that 10 workers employed by Destin Drywall & Paint were using Social Security numbers that did not match their names. Another three used Social Security numbers that were never issued by the government, according to an affidavit unsealed Friday at U.S. District Court in Scranton.

The Costa Ricans are expected to return this week to Costa Rica, if they are not held for using fake documents.