Global Affairs Canada did not immediately respond on whether any Canadians were affected
The Canadians are among the many foreign nationals in Syrian camps run by Kurdish forces
Children will likely have endured trauma for at least 3 years, expert says
Quebec woman returning from Syria with children charged with joining Islamic State
Months-long struggle highlights plight of several Canadians held in Syrian camps by Kurdish forces
Woman said she has no identity documents, little cash, and feared for her safety
