With lawmakers by and large back in their districts for the Presidents Day recess this week, a New York man has been arrested for allegedly threatening members of Congress.

Multiple news outlets reported Thursday afternoon that Lawrence Mulqueen of Nanuet, N.Y., was arraigned on charges of making terrorist threats, illegally possessing weapons and harassment.

Law enforcement officials also uncovered two rifles, bayonets, ammunition, a sword, a knife and body armor in the 49-year-old’s home, according to local news reports.

The Associated Press reported that the police were alerted to Mulqueen’s behavior on Wednesday afternoon by his landlady, who said he’d been harassing her. She then showed police officers Mulqueen’s Facebook page, where under a fake name he had been posting threats to government officials.

According to an article on the New York CBS affiliate’s website, Mulqueen wrote on Facebook that he wanted to kill Sen. Charles E. Schumer, D-N.Y.; House Appropriations ranking member Nita M. Lowey, D-N.Y.; House Minority Leader Nancy Pelosi, D-Calif.; Senate Majority Leader Harry Reid, D-Nev.; and members of the Congressional Black Caucus.

The news story also reported threats made by Mulqueen to New York Gov. Andrew M. Cuomo and New York Mayor Michael Bloomberg.

Officer Shennell Antrobus, spokesman for the Capitol Police, told CQ Roll Call on Thursday that the agency has “an open and active investigation with local law enforcement.” The Capitol Police typically does not divulge specific information about its probes into security matters involving members of Congress.

Spokesmen for targeted lawmakers were also unwilling to speak to the nature of the threats waged against their bosses, with many saying they did not want to interfere with the ongoing investigations in districts and on Capitol Hill.