Every air quality monitor in Minnesota is reporting red or unhealthy conditions for everyone, an official said.

The Minnesota Pollution Control Agency (MPCA) has issued an AIR QUALITY ALERT for all of Minnesota until late Saturday afternoon. Meanwhile, the Iowa DNR has issued an AIR QUALITY ALERT for all of Iowa through Friday night.

The MPCA says that sensitive groups should avoid prolonged or heavy exertion, and everyone should limit their time spent outdoors.