WASHINGTON — The US Postal Service intercepted a package addressed to House Homeland Security Committee Peter King (R-N.Y.) containing a severed pig’s foot and an anti-Semitic note referencing the congressman’s controversial hearings on Islamic radicalization, FOX News Channel reported Monday.

The package was intercepted at the congressional mail facility in Landover, Md., which screens mail sent to lawmakers, according to CBS News. The Postal Service said the package tested negative for hazardous materials.

King, who is Roman Catholic, came under fire last month for holding the high-profile hearing, which was aimed at examining the threat posed by radical Islam in the United States. The Council on American-Islamic Relations (CAIR) backed a protest of the hearings in New York City, while the American Civil Liberties Union compared the hearings to “McCarthyism and Japanese internment.”

King had round-the-clock security as he pushed forward with the hearing in spite of the backlash. A larger security detail provided by the New York Police Department and the Nassau County, N.Y., police guarded King in the months leading up to the hearing, while Capitol Hill police secured the congressional hearing room and the surrounding areas on the day of the first hearing.

Ibrahim Hooper, the National Communications Director for CAIR, said his organization often receives pig-themed hate messages, since Muslims are forbidden from eating pork products, CBS reported.

“My guess it was an anti-Muslim bigot, and bigots not being brain surgeons, they probably got their signals crossed,” he said of the package mailed to King.

Several witnesses at King’s hearing criticized CAIR in their testimony for failing to discourage the radicalization of American Muslims.

King said last month that he plans to hold another hearing in a few months that would likely focus on the radicalization of Muslims within the US prison system.