The US accused Russia of being responsible for the sound attacks on US diplomats in Havana, Cuba. There is no evidence for such accusations, but the very clear reason is for the US to have the ultimate reason to seriously disrupt its relations with Russia. This media paranoia has one goal: to limit the possibilities of international trade, to break economic, cultural and other ties, to get all contacts to the level of the Cold War.
The US administration, as well as US President Donald Trump himself, have expressed the belief that the Cuban government is responsible for sonic attacks. "I believe Cuba's responsible. I believe that, "Trump said in a Rose Garden news conference. The issue raises more questions than answers, so the investigation also focuses on the possibility that a third country might be behind the attack. However, it does not operate with the assumption that the country is explicitly Russia.