DE SOTO, Kan. (AP) — Members of Kansas' congressional delegation are pushing for faster environmental cleanup at a former ammunition plant in the northeastern part of the state.

The Army resumed cleaning up contaminants three years ago at the former Sunflower Army Ammunition Plant after a five-year shutdown. The facility near De Soto produced gunpowder for World War II artillery shells and rocket propellants during the Korean and Vietnam wars.

The Army said it's making progress, but some federal lawmakers from Kansas are concerned about the 2028 target date to complete cleaning up the 5,300 ac...