The Canadian government said Thursday that at least one Canadian diplomat in Cuba also has been treated for hearing loss following disclosures that a group of American diplomats in Havana suffered severe hearing loss that US officials believe was caused by an advanced sonic device.
Global Affairs Canada spokeswoman Brianne Maxwell said Canadian officials “are aware of unusual symptoms affecting Canadian and US diplomatic personnel and their families in Havana. The government is actively working — including with US and Cuban authorities — to ascertain the cause.”
Maxwell added that officials don’t have any reason to believe Canadian tourists and other visitors could be affected.
Canada helped broker talks between Cuba and the United States that led to restored diplomatic relations.
In the fall of 2016, a series of US diplomats began suffering unexplained losses of hearing, according to officials with knowledge of the investigation into the case. Several of the diplomats were recent arrivals at the embassy, which reopened in 2015 as part of President Barack Obama’s re-establishment of diplomatic relations with Cuba.
Some of the US diplomats’ symptoms were so severe that they were forced to cancel their tours early and return to the United States, officials said. After months of investigation, US officials concluded that the diplomats had been attacked with an advanced sonic weapon that operated outside the range of audible sound and had been deployed either inside or outside their residences.
It was not immediately clear if the device was a weapon used in a deliberate attack, or had some other purpose.
The US officials weren’t authorised to discuss the investigation publicly and spoke on condition of anonymity.
State Department spokeswoman Heather Nauert said the US retaliated by expelling two Cuban diplomats from their embassy in Washington on May 23. She did not say how many US diplomats were affected or confirm they had suffered hearing loss, saying only that they had “a variety of physical symptoms”.