Authorities in Sibley County are stepping up patrols in childcare neighborhoods after a string of suspicious calls. A man pretending to work for Pampers has apparently called several daycare providers in the area asking about their children. Police say the caller wanted to know the ages of the kids, and how many were still in diapers. At least seven such cases in the past week are being investigated, as well as reports of a driver taking pictures outside local daycares. Anyone with information is asked to contact the Sibley County Sheriff’s Office.