There had been claims that employees at the US Embassy in Havana had fallen victim to a mysterious “sonic attack”, which halved its staff in 2017. Fresh analysis by two scientists say that the sound is actually the call of Caribbean Lovelorn crickets.
In late 2016, US diplomats and their families reported unexplained health problems like headaches , nausea and other problems after hearing a penetrating noises in their homes and nearby hotels. This was suspected to be an acoustic weapon possibly from the Russians. An analysis of the audio recording made by the personnel in Cuba revealed that the source of this sound is the song of Lovelorn crickets.