Fort Totten Park in Washington D.C. has been closed after two metal canisters containing World War I-era munitions were discovered during unauthorized work. The National Park Service and U.S. Army are now investigating the area to determine if there are any more munitions hidden in the park, and the section of the park will remain closed while the investigation is ongoing. The Army is now working with the National Park Service to safely remove the munitions and ensure the safety of the park and its visitors.