Facebook says suspected Iranian hackers behind U.S. election threats operated in 2019

FILE PHOTO: FILE PHOTO: A 3D-printed Facebook logo is seen placed on a keyboard in this illustration taken March 25, 2020. REUTERS/Dado Ruvic/Illustration

LONDON (Reuters) - Iranian hackers suspected of emailing threatening messages to U.S. voters last week and spreading false information about compromised election systems ran a disinformation campaign last year targeting the Middle East, Facebook Inc said on Tuesday.

U.S. officials blamed Iran last week for thousands of threatening emails and an online video that purported to show hackers breaking into a voter registration system just days before the U.S. presidential election. Tehran has denied the allegations.