Throughout Supreme Court Justice Brett Kavanaugh's brutal confirmation fight, protesters targeted Sen. Susan Collins in intensely personal fashion. | Alex Brandon/AP Photo Congress Police investigating suspicious envelope sent to Sen. Collins' home

Authorities on Monday began investigating a reported "suspicious envelope" sent to the home of GOP Sen. Susan Collins in Bangor, Maine, according to a local police department representative.

The Bangor Police Department offered no details about the package and identified no suspects during a news briefing.


A police department representative said only that the local fire department and a team specializing in hazardous materials were assisting the efforts after the envelope was reported Monday afternoon. The case could end up under the jurisdiction of federal investigators, the representative added.

Further questions about the investigation were directed to the Capitol Police, where a spokeswoman said that policy prohibits comment on ongoing investigations.

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Throughout Supreme Court Justice Brett Kavanaugh's brutal confirmation fight, protesters targeted Collins in intensely personal fashion — with one anti-Kavanaugh caller threatening to rape a female staffer if the senator supported the judge, according to Collins. It's not clear whether the letter that was sent to Collins' home was related to her eventual "yes" vote on Kavanaugh.

Collins' husband was at their home and she was on her way back as the police disclosed the investigation on Monday afternoon, a spokeswoman said. Authorities had "no comment" on whether anyone sustained injuries.