USA embassy in Cuba was under sonic weapon attack recently.

http://www.foxnews.com/science/2017/09/18/scientists-still-baffled-by-mysterious-sonic-weapon-attack-on-us-embassy-in-cuba.html

USA embassy will be closed in Cuba for its personnel health protection.  The USA is certain that its embassy in Cuba is under some kind of sonic weapon attack but it cannot determine the source and frequency.

21 personnel have been confirmed to be injured by this sonic attack.