D.C. Fire/EMS is reporting an explosion at a Southeast D.C. home this afternoon that critically injured at least one person. It’s looking like a propane tank exploded inside the basement of a house at 1127 46th Street SE. FOX5 is reporting that a 49-year-old man who was inside the home is in critical condition after suffering second and third-degree burns from the explosion and subsequent fire. Fire crews remain on the scene, and there’s some concern that the house could collapse.