An air quality alert for northeastern Minnesota due to smoke from wildfires has been extended to cover the entire state. The updated statewide alert by the Minnesota Pollution Control Agency (MPCA) runs until 6 p.m. Monday. Officials say air quality is expected to worsen over the weekend. The statewide alert came as smoke from Canadian wildfires filtered into Minnesota, making the air unhealthy. The smoke contains fine particles that can harm respiratory and cardiovascular systems, the MPCA said. The air quality across northern Minnesota is expected to be unhealthy for everyone. That area includes Brainerd, Bemidji, East Grand Forks, Moorhead, International Falls, Two Harbors, Hibbing, Ely, Duluth, Roseau and the Tribal Nations of Leech Lake, Red Lake, Grand Portage and Fond du Lac. Air quality in the rest of Minnesota is expected to be unhealthy for people in sensitive groups. Those with asthma or other breathing conditions, heart disease, high blood pressure and diabetes are advi...