WICHITA, Kan. (AP) – The Kansas Department of Health and Environment has issued an air quality advisory due to annual controlled burning in the Flint Hills.

The agency is advising residents to take precautions because heavy smoke could spread across the state.

The agency says the weather is good for range burning, but it could put higher levels of pollutants in the air. Smoke from controlled burns can cause burning eyes, running nose, coughing and illnesses such as bronchitis.

The agency recommends that people should avoid strenuous outdoor exercise, keep doors and windows closed, and drink lots of water. It recommends that people with heart or breathing-related illnesses remain indoors.

The air quality advisory is effective through Thursday.