Suspicious packages have been sent to six government and military sites around the US capital Washington, according to media reports Monday.
Officials previously said they were looking at more than five locations in the area where the packages were received, including the White House and Central Intelligence Agency mail facilities located at Joint Base Anacostia-Bolling, officials told Fox News.
Michael Howard, an Army spokesman, confirmed reports that one of the suspicious packages was sent to National Defense University at Fort McNair around 8:30 a.m. "The X-ray conducted indicates suspected Global Positioning System and an expedient fuse were attached".
On Monday, three military bases confirmed receiving packages containing explosive materials, but all packages were detected before they could be opened.
Federal law-enforcement officials said Monday that they are investigating a wave of suspicious mailings to government offices in and around Washington.
The Associated Press reported that the packages "contained black powder along with rambling, nonsensical notes similar to those the man has been known to send in the past". It was rendered safe and the building was cleared about 1:15 p.m.
One of the individual packages tested positive for gun powder and also had a fuse.
They were also delivered to Joint Base Anacostia-Bolling, a military base in Washington and the Naval Surface Warfare Center in northern Virginia.
No injuries or explosions were reported. It is possible that further packages were mailed to additional mail processing facilities in the Washington, DC Metropolitan area.
CNN reported the Federal Bureau of Investigation now has the packages and is examining them at a lab in Quantico, VA.
'We are tracking the delivery of suspicious packages to multiple military installations in the National Capital Region. Lt. Col. Michelle Baldanza, a spokesperson for the Defense Department, revealed that no one was injured by any of these packages, although the facilities remain on high alert.