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Metro

Tests negative on suspicious letter sent to Scott Brown’s office

The bomb squad and hazardous materials technicians responded to US Senator Scott Brown’s office in the JFK Federal Building in downtown Boston around noon today for a report of a suspicious letter. But initial testing determined there was no hazard, authorities said.

The letter was addressed to Brown’s office at 15 New Sudbury St., police spokesman James Kenneally said.

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Field tests of the envelope came back negative, and it was transported to a state lab in Jamaica Plain for further tests, fire department spokesman Steve MacDonald said.

“The staff is trained at these offices,” he said. “They became concerned about this piece of mail, called authorities. We came to field-test -- package it up to bring it to the state lab for further analysis.”

One staff member was evaluated by emergency medical technicians, but was not injured, MacDonald said.

MacDonald said the office staff did not open the envelope, though he did not know what prompted their concern.

“There was something about it that raised a concern so they didn’t open it,” he said.

The latest incident comes after an envelope containing a powdery substance was found Friday at Suffolk District Attorney Daniel F. Conley’s office, which is nearby, at 1 Bulfinch Square.

Tests also came back negative in that case and the envelope was taken to the state lab for further testing.

Colin A. Young can be reached at colin.young@globe.com.

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