The Washington Navy Yard where a gunman killed 12 people in 2013 is on lockdown Thursday after reports of an active shooter inside it.
Navy Commander Scott Williams, who was at the Navy Yard on Thursday morning and also during the attack two years ago, told CNN's "New Day" that the scene unfolding around the complex was "pretty much a mirror image of 2013".
The National Military Command Center confirmed reports that shots were fired on the installation. U.S. Park Police told FoxNews.com that officers are at the scene.
The building where the shots were reported was already largely emptied Thursday as civilian and military law enforcement officers swept it, said the official.
The official also said there have been no reports of injuries.
Fox News noted that while there is no proof yet that the incident is terror related, ISIS spokesman Abu Muhammad al-Adnani recently said that jihadists should make Ramadan a time of "calamity for the infidels … Shi'ites and apostate Muslims."
"Muslims everywhere, we congratulate you over the arrival of the holy month," he said. "Be keen to conquer in this holy month and to become exposed to martyrdom.