The United States Capitol Police (USCP) said an armed man who had entered the Capitol and Library of Congress was arrested on Tuesday. USCP said it received information about a man in the area with mental health issues and suicidal thoughts who was allegedly armed.

WASHINGTON (7News) — A Massachusetts man stopped shortly after taking a tour on the U.S. Capitol grounds Tuesday was found with a gun in his waistband and had been experiencing mental health issues, according to U.S. Capitol Police (USCP).

United States Capitol Police arrested a man who was found on Tuesday with a concealed firearm, but who had been mistakenly let into the Capitol with the weapon. Officers with the Capitol Police received a lookout notice for a “man with reported mental health issues and suicidal thoughts who was believed to be armed and in the area,

The U.S. Secret Service and Washington, D.C. Metropolitan Police found the man in a Washington hotel early Tuesday morning and interviewed him, sources said. They searched for a gun and found no weapon and no further action was taken at that time, they said.

The 27-year-old Massachusetts man was arrested after Capitol police officers found him leaving the Library of Congress, police said.

A Capitol Police officer has been suspended after a man with a gun was able to get past a security check at the Capitol Visitor

An armed Massachusetts man was apprehended by Capitol Police near the Library of Congress after taking a tour of the Capitol the day following the inauguration, authorities revealed.

A Massachusetts man who toured the U.S. Capitol on Tuesday was later found to be carrying a handgun, police officials said.

A Massachusetts man was arrested after entering the US Capitol with a concealed handgun. No injuries were reported, and there was no evidence of intent to harm Congress. The officer who allowed entry is suspended,

President-elect Donald Trump's will be sworn in under the Capitol Rotunda, rather than outside. But he's not the only president inaugurated in an unusual location.

Police say a man who entered the U.S. Capitol with a handgun in his possession and took a tour of the building has been arrested and faces weapons charges. The 27-year-old Massachusetts man was arrested Tuesday after Capitol police officers found him leaving the Library of Congress.

The United States Capitol Police (USCP) said an armed man who took a U.S. Capitol tour and visited the Library of Congress was arrested.