CHAPPAQUA - Chappaqua police are searching for whoever spray-painted "Benghazi" on a Hillary Clinton sign over the weekend.

The sign was promoting her upcoming book signing event at the Chappaqua Library. The vandalism was discovered Sunday morning.

Clinton will be at the library on Sunday afternoon to sign copies of her new memoir, “Hard Choices.”

The book profiles her time spent as secretary of state, including the terrorist attack in Benghazi, Libya.

There is no word on if police have any leads in the case.