Fourteen people, including current and former diplomats and their families, are seeking Can$28 million ($21 million) in damages from the federal government.
Aasia Bibi's daughters move to Canada
All of them have been back in Canada for a year but still suffer from what has become known as "Havana syndrome," a mystery illness with symptoms including strong migraines as well as visual and auditory disorders.
According to CBC, which interviewed five of those affected, the first symptoms appeared in the spring of 2017 - but they say that Ottawa waited more than a year before helping everyone.
Questioned on the subject on Wednesday while she was in Washington, foreign minister Chrystia Freeland said the safety of diplomats remained a top priority.
Canadian citizen reportedly killed for ‘honour’
"I am not going to comment on the specifics, but I do want to reiterate that I have met with some of these diplomats and, as I said to them, their health and safety needs to be our priority and they have my true sympathy and concern," she said.
On January 30, Canada announced it had reduced its staffing at the embassy to about half as a result of the unexplained symptoms.
Canadian public broadcaster CBC said just eight officials would be left at the embassy.
COMMENTS
Comments are moderated and generally will be posted if they are on-topic and not abusive.
For more information, please see our Comments FAQ