Dhaka, July 9 -- The U.S. State Department has issued a warning to all embassies and consulates after an impostor, using artificial intelligence, tried to impersonate Secretary of State Marco Rubio and contacted foreign and American officials, according to two senior officials and a diplomatic cable dated July 3.

At least three foreign ministers, a U.S. senator, and a state governor were reportedly targeted through texts, Signal messages, and voicemails in the fraudulent campaign. The identities of the recipients were not disclosed.

"This incident is being actively monitored and addressed," said State Department spokeswoman Tammy Bruce. "We continue to strengthen our cybersecurity to prevent future incidents." She declined further comme...