Havana syndrome: 'directed' radio frequency likely cause of illness – report

First official explanation of illness that affected US diplomats in Cuba says pulsed' energy may have led to unexplained symptoms

The mysterious symptoms that have afflicted American diplomats stationed in Cuba, puzzling scientists and intelligence agencies alike, are most likely to have been caused by directed, pulsed radio frequency energy", according to a report commissioned by the US government.

Those suffering from Havana syndrome, as the condition has become known, have complained of headaches, nausea, dizziness, blurred vision and other ailments.