A frmr US official has shared an audio which purportedly reveals a sound associated with Havana Syndrome – a mysterious illness of uncertain origin which has afflicted US bureaucrats, troops, and intelligence officers.

The ex-official, who did not want to be named, told CBS’ ‘60 Minutes’ that he had experienced the sickness at his home in Havana, Cuba. He described the noise he heard as “just loud sound” which “just absolutely filled my room.”

The malady has allegedly affected nearly 200 US officials since it was first reported in 2016, but American intelligence still hasn’t found its cause.

WARNING: The noise may cause disappointment