Seth Moulton

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Offices of several Massachusetts lawmakers, including Rep. Seth Moulton’s office in Salem, received suspicious mail last week, police said.

The “suspicious parcel,” sent to Moulton’s office at 21 Front St. on Friday, contained an “unknown powdery substance,” the Salem Police Department said on Facebook.

Officers responded to the office and removed the mail from the building, police said. The substance was sent to the State Crime Lab for analysis.

Police said the package was “similar in nature” to a recent series of suspicious mailings targeting election and congressional offices nationwide.

In a statement, the FBI said it and the U.S. Postal Inspection Service are investigating the mailings.

“Some of the letters contained an unknown substance,” the statement reads, “and we are working closely with our law enforcement partners to respond to each incident.”

Suspicious mail was also sent to Secretary of State Bill Galvin and the state district offices of Reps. Jake Auchincloss, Katherine Clark, Stephen Lynch, Ayanna Pressley, and Lori Trahan, The Boston Globe reported.

Trahan said a letter sent to her Lowell office contained a “potential threat.”

“I won’t pretend this is normal,” Trahan wrote in an X post. “It’s deeply disappointing that threats like this have become part of our politics. The people who run our offices and our elections are public servants. They deserve to do their jobs without fear.”

Lynch received an envelope at his Brockton office that prompted a response from local hazardous-materials and bomb teams. An on-site assessment found “no evidence of contamination or hazardous threat,” he said on Facebook.

Lynch said his office’s mail will now be rerouted through his Washington, D.C. office to undergo “full Capitol complex screening procedures.”

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