Officials: Explosives placed in mailboxes around Montgomery County neighborhood

Oregon. Bandon. Mailbox. (Photo by: Claudio Beduschi/AGF/Universal Images Group via Getty Images)

Investigators with the United States Postal Service say they are searching for whoever is responsible for placing explosives inside several mailboxes in a Montgomery County neighborhood.

The United States Postal Inspection Service on Friday said the explosives were placed in several mailboxes on Graterford Road in Limerick Township, Montgomery County between Sept. 2 and 10. 

Authorities did not provide a description of the suspect(s) being sought and did not share a possible motive. 

No information was given about whether the explosives detonated or if anyone was hurt. 

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The postal service said placing explosives into a U.S. Mail depository could carry a 20-year prison sentence. 

Anyone with information about the incident should contact the U.S. Postal Service or local law enforcement.