New unemployment claims rose in Iowa, from 4,652 to 6,601, between Sept. 13 and Sept. 19 as the pandemic continues to take an economic toll on the state.Continuing claims decreased, though, from 65,422 to 63,291.Manufacturing was the largest source of unemployment claims, at 1,483, followed by construction at 1,043, self-employed and independent contractors with 970, health care and social assistance at 440, and accommodation and food services at 416.Claims in the construction industry more than doubled in September.