At least two US officials were used after developing nausea, severe headaches, ear pain, fatigue, insomnia and sluggishness, according to The Wall Street Journal.
The cases were among the first reported in a NATO country that is home to US troops and weaponry. Diplomats said US officials experienced similar illnesses in other European nations, according to the report.
The attacks have also happened in China, Russia and Austria, and have long been assumed to be attached to Russia. Many victims were intelligence officers or agents working on Russian-related issues.
A CIA task force headed by an official who was included in the search for Osama Bin Laden is currently investigating the cause of the hard-to-diagnose marks, which have reportedly troubled as many as 200 Americans.
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One case at Walter Reed National Military Medical Center said he was diagnosed with a brain injury compared to those seen in people exposed to explosion shock waves, the Journal reported.
The patient told the paper he endured piercing ear pain, high-pitched electronic noise, and stress in the ears before being troubled with other symptoms.
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“There is no evidence about what happened to us, but it is striking that some of us had worked on Russia-related issues,” the patient reportedly said.
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“Whatever it is, it is a form of terrorism—it has caused serious injuries that have been life-altering for some of us,” the victim told the newspaper.
The US Embassy had not informed the German government of the latest suspected attacks because officials were still investigating, according to the article.
Combative Russian activities in Germany, from disinformation campaigns to spying and hacking, had recently increased to levels unseen since the 1980s, German spies reportedly said.
“The methods are getting ever harsher and the means more brutal,” Thomas Haldenwang, head of the German Federal Office for the Protection of the Constitution, reportedly said earlier this year. Russian Embassy officials in Berlin blamed a Russophobic propaganda machine for the furor, the article said.
After almost two dozen Americans in Austria were recorded being hit with the Havana Syndrome, authorities in the neutral country launched their own investigation, the paper reported.
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“We take this extremely seriously, we have a responsibility to protect the health and safety of diplomats and this poses a challenge to our reputation as an international center of dialogue,” an Austrian official told the Journal.
“It could be that the attacks were outsourced to organized crime, but it is very difficult to understand why the Russians or anyone else would do this,” the official reportedly said. “It seems like a campaign to hurt people for no apparent reason.”
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