A bomb went off outside a Planned Parenthood location in Wisconsin last night, causing a fire that slightly damaged an exam room. No one was harmed in the blast, the New York Daily News reports. The homemade device, consisting of chemicals in a plastic bottle, was located on an outside windowsill, the Appleton Post-Crescent notes. "Our primary concern today—as always—is our patients, staff, and volunteers," says the CEO of Planned Parenthood of Wisconsin. "Rest assured, our doors will remain open for the thousands of women who rely on Planned Parenthood of Wisconsin each year for high quality health care." The location will re-open tomorrow.