WICHITA, Kan. (AP) — Rescuers using boats, a helicopter and wading boots were searching for a 62-year-old Wichita man whose pickup truck was swept away by floodwaters.

The National Weather Service told The Wichita Eagle that rainfall rates of up to 4 inches per hour Friday night caused widespread flooding in Sedgwick and Butler counties.

Butler County Sheriff Kelly Herzet says Richard Lowery and his son were in their truck when they drove into water on the road and tried to back out around 10 p.m. Herzet says the son got his window down as the vehicle was filling with water and was sucked out.

Herzet says the son walked out of a bean field around 7 a.m. and was taken to a hospital. The search for Richard Lowery continued Saturday afternoon.