PROVIDENCE, R.I. (AP) — The Rhode Island Department of Labor and Training is warning about 350 users of its online career center not to share their personal information and download files from a fake company that was apparently set up to steal personal identities.

The agency says someone has fraudulently used an employer's identification information to set up a fictitious company that contacted 350 users of The fraudsters asked the potential victims to set up Yahoo Inc. instant-messaging accounts, import personal information and download particular files.

The Department of Labor and Training says it is concerned that those who responded may have compromised the security of their personal information or their computers.

Police and prosecutors are investigating.

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