A muck fire caused by a lightning strike outside Davenport has caused a burning smell throughout Polk County, officials with the Florida Fire Service said this week.

The lightning strike occurred Tuesday and started a muck fire off Fire Tower Road near Catfish Creek Preserve that quickly encompassed 450 acres. By Thursday afternoon, it was 980 acres, Lisa Frank, a duty officer supervisor said. As of Thursday afternoon it was about 25 percent under control.