An extensive U.S. intelligence community investigation has concluded it was “very unlikely” a foreign adversary was responsible for the “Havana syndrome” ailments that have afflicted U.S. diplomats and intelligence officers worldwide, according to declassified findings released on Wednesday.
The mysterious ailment, first reported among U.S. officials in the Cuban capital in 2016, has afflicted U.S. diplomats, officials and family members overseas. Symptoms have included migraines, nausea, memory lapses and dizziness.
The U.S. intelligence assessment found no credible evidence that any American adversary had a weapon or device capable of causing symptoms consistent with the syndrome.
As part of the investigation, which lasted more than six years, U.S. intelligence agencies considered the possibility that extraterrestrials were responsible for the Havana syndrome but ruled that out, a U.S. official said in a briefing to reporters.