An unknown person sent texts to and left voicemails for at least five government officials, mimicking the Secretary of State's voice and writing style, The Washington Post reports.

The US State Department said it is investigating an imposter who used artificial intelligence to impersonate Secretary of State Marco Rubio and contact three foreign ministers.The "unknown actor" is alleged to have used an artificially-generated voice of Rubio to contact officials via the Signal messaging app,

Marco Rubio is reportedly being impersonated using artificial intelligence. An imposter who used AI to imitate the secretary of state's voice and writing style has contacted a range of foreign and domestic officials posing as Rubio, according to a senior U.S. official and a State Department cable obtained by The Washington Post.