Wednesday, August 23
came under the US Embassy and Canadian Embassy in Cuba to the attacks by using a mysterious weapon, while the suspect Washington 's involvement of hostile states with the attack, including Iran , but did not Old any proof of that.
US media sources said the unidentified assailants used a "voice" weapon.
The attacks, which took place from November 2016 until the spring of 2017, caused nausea, pain and hearing loss, and two of the injured US embassy staff were unable to resume work.
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The injured heard an unbearable noise like insect gnawing or metal surface spraying at night, and then could not work all day.
As long as the US authorities kept silent on the "vocal" attacks in Cuba until Foreign Minister Rex Tillerson announced in August that the Cuban authorities were responsible for the "deadly votes".
Washington has suspected the involvement of anti-American countries such as Russia, China, North Korea, Iran and Venezuela in the "voice terrorism", but could not provide any evidence, and the source of the "fatal voices" has not been revealed so far.
The United States is a leading nation in the production and use of voice weapons, and the loudness resulting from the use of the American voice weapon 150 decibels, knowing that sounds of 85 dB or more are dangerous to the ear, as they lead to temporary damage or Permanent hearing.