By Joe Sutton and Zoe Sottile, CNN (CNN) — Rescuers are searching for two people in northern Minnesota who went missing after going over Curtain Falls in canoes, according to authorities. The St. Louis County Sheriff’s Office was dispatched to Iron Lake near the border of Canada at 7:21 p.m. Saturday, according to a news Read this story at KTVZ , KEYT , KIFI