Thunder Bay Police say no charges will be laid against the man who caused a Westjet flight to make an emergency landing on Saturday. The Toronto-bound flight was grounded in Thunder Bay after the crew decided to land because of an agitated 27-year-old passenger. Police say the man has a history of mental health issues and was held for a medical assessment. Police say it's expected the man, along with his father, will be returned to Portugal once he has been cleared medically.