A small plane crash in Labrador has left 3 passengers dead, according to the CBC. 4 people are still missing as of the time of publication.\nThe aircraft belonged to Quebec-based Air Saguenay, which operates float planes. The fatal flight was transporting fishermen between settlements in Shefferville, Quebec and the area of Misatin Lake in Labrador, CTV reports.\nA rescue mission is underway while federal authorities investigate.\nShefferville is a small municipality in northern Quebec near the border of Labrador.\nThe red circle on the map below surrounds Misatin Lake, a remote location far in the Labador interior.\nGoogle Maps\nOn its Facebook page, Air Sagueny states that "with more than 45 years of experience in the field of bush air transport, with safe aircraft piloted by experienced pilots, with a team of experienced maintenance; we are able to offer professional and customized services to meet your transportation needs and maintenance needs."\nThis is not the first time that an Air Saguenay aircaft crashed. In 2010, 4 people died after a plane crash north of Saguenay. Then in 2015, a crash in Les Bergonnes, Quebec killed 6 people.\nThe 2010 crash was the result of a mistake made by the pilot, says the CBC. Authorities also fined the airline for violating safety regulations.\nPhoto 1534418 © George Wood - Dreamstime.com\nThe Transportation Safety Board of Canada is reportedly investigating the incident, though the agency has not issued a statement on its website.\nStay tuned for updates on this developing story.