CIA and Pentagon review secret 'Havana syndrome' device in Norway

US officials investigated a previously unreported experiment in Norway in which a government scientist tested a microwave device and developed neurological symptoms similar to the so-called Havana syndrome.

The Washington Post reported on Saturday, citing people familiar with the matter.

Norway informed the CIA about the incident, prompting at least two visits from Pentagon and White House officials, the report said.

People familiar with the test said the results did not prove that American diplomats and spies were being targeted by a foreign adversary, although they did show that pulsed energy devices can affect human biology.