US diplomats who suffered from the mysterious 'Havana syndrome' may have been targeted by Russian sonic weaponry, according to a new joint media investigation. The condition first came to light in 2016 when US diplomatic staff working at the embassy in Cuba's capital, Havana, reported suffering symptoms such as headaches, ringing in the ears, and cognitive dysfunction. Similar ailments were also reported by embassy staff in China, Europe and the US capital, Washington DC.
The group is thought to have been behind the attempted assassination of Sergei Skripal in the Salisbury poisonings of 2020. As part of the investigation, The Insider, a Russia-focused investigative media group based in Riga, Latvia, reported that members of Unit 29155 had been placed at the scene of reported health incidents involving US personnel.