By ERIC TUCKER,
Associated Press Writer

NEWPORT, R.I. - Large grocery and discount stores across the country have been targeted by a caller who threatens to blow up shoppers and workers with a bomb if employees fail to wire money to an account overseas, authorities said.

Frightened workers have wired thousands of dollars - and in one case took off their clothes - to placate a caller who said he was watching them but may have been thousands of miles away. The FBI and police said Wednesday they are investigating similar bomb threats at more than 15 stores in at least 11 states - all in the past week.

“At this point, there’s enough similarities that we think it’s potentially one person or one group,” FBI spokesman Rich Kolko said from Washington.

No one has been arrested, no bombs have been found, and no one has been hurt, though the calls have triggered store evacuations and prompted lengthy sweeps by police and bomb squads.

Law enforcement officials say the caller claims to have a bomb and orders the store to send money to an account through an in’store money transfer service such as Western Union. He often claims to be able to see inside the store, but officials believe he was making it up.

In Newport, employees at a Wal-Mart got three calls Tuesday morning and wired three payments totaling $10,000 to an account out of the country, Sgt. James Quinn said. A spokeswoman for Wal-Mart Stores Inc. said the company was assisting in the investigation, but offered no further comment.

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