WICHITA, Kan. (AP) — Heavy rains overnight are causing flooding in low-lying areas and some road closings in south-central Kansas. The National Weather Service says 3 to 6 inches of rain fell in the area between late Sunday and early Monday in parts of Sedgwick, Harvey, Marion and McPherson counties. Flash flood warnings were in effect early Monday in northwest Sedgwick County and all of Harvey County. Flood warnings also are were also issued for parts of Marion, McPherson, Reno, Butler and Chase counties. The weather service says the Big Blue River near Blue Rapids in Marshall County was at 35.3 feet early Monday. Flood stage for the river is 26 feet. No serious injuries or major damage has been reported.