(Guthrie Center, Iowa) – The Guthrie County Sheriff’s Office, Friday, posted on social media that repair shops in the area are finding pieces of metal being picked-up by tires on roads in the Guthrie Center area, that are causing numerous flats. (See the photos below).

The post said authorities want motorists to be watchful for “Caltrops,” in hope you don’t run over them, causing you to have a very bad day (shown below) of what the repair shops are finding. Some of the Caltrops are over one-inch long.