Alex Taylor and Terence Corcoran

Hillary Clinton upcoming book-signing banner defaced outside the Chappaqua Library

Someone wrote "Benghazi" in large red letters

Police continue to investigate the weekend incident

Book-signing set for 3 p.m. Sunday at the library

CHAPPAQUA – New Castle police continued their investigation Monday into the defacing of a sign outside the Chappaqua Public Library promoting an upcoming book signing by former Secretary of State Hillary Clinton.

Lt. James Wilson said police had not made any arrests.

The sign was posted outside the library on South Greeley Avenue to promote the weekend appearance of Clinton, a Chappaqua resident. But someone wrote across the sign in large red letters the word, "Benghazi," police said. It refers to the 2012 attack on the U.S. diplomatic mission in Benghazi, Libya.

"It was discovered Sunday morning, so we're thinking it was done sometime in the overnight Saturday," Wilson said.

Clinton is scheduled to sign copies of her new memoir, "Hard Choices," at 3 p.m. this Sunday at the library at 195 S. Greeley Ave. The library will distribute a limited number of wrist bands on a first-come-first-served basis starting at 1 p.m.

The book details her time as Secretary of State, including the attack at Benghazi.

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