Diplomats file $28M suit against Canada over injuries suffered in Cuba

Five Canadian diplomats and their family members who became mysteriously ill while posted to Cuba are suing Ottawa for more than $28 million.

In a statement of claim filed Wednesday in Federal Court, the diplomats say the Canadian government failed to protect them, hid crucial information and downplayed the seriousness of the risks.

Global Affairs Canada acknowledges that nine adults and five children from diplomatic families have developed unusual illnesses in Havana, with symptoms including nausea, dizziness, headaches and trouble concentrating.

Global Affairs has said the government is trying to pinpoint the cause, stressing that the health and safety of diplomatic staff and their families are the priorities.

Speculation has focused on some kind of acoustic or microwave assault, unknown contaminants and even chirping crickets.

Officials have all but ruled out environmental factors, such as toxins in the air, soil or water, and no longer suspect a sonic attack is to blame.