Investigators Cuba announced the results of its investigation of the incident, called the staff of the American Embassy "acoustic attack".
The results of the survey of investigators of the source of the sounds was provided by the us side in the form of audio recordings may be the crickets and cicadas. These insects are widely distributed throughout Cuba, including their colonies discovered near the U.S. Embassy.
According to the state Department of the USA in the "acoustic attack" injured 20 Embassy staff. Cuba gave the results of the investigation to the American side, but the answer or any assessment are still followed.
Doctors say that loud noises of tropical insects really can affect hearing, blood pressure and mood.
sections: World News, Accidents