The driver that rammed their vehicle into two US Capitol police officers and a barricade has also died after being shot by police. "Even though the attacker left the vehicle with a knife in his hand and had run towards the police officers", the Capitol Police was quoted as saying.
"This has been an extremely hard time for U.S. Capitol Police", Pittman said at a news conference on Friday afternoon, noting the attack underscores that the Capitol Hill remains a potential target for violence. An investigation has been opened.
"It does not appear to be terrorism-related, but obviously we will continue to investigate", said Contee.
Capitol Police say that someone "rammed a vehicle into two USCP officers" and that a suspect was taken into custody.
"Please keep Officer Evans and his family in your thoughts and prayers", Pittman said in a statement.
The drama unfolded at a security checkpoint near the Capitol complex, close to where armed insurrectionists stormed the building housing the US Congress on January 6. Congress is now on recess.
"Toledo Democratic Rep. Marcy Kaptur posted her own statement on Twitter that described the incident as "a horrific tragedy" and said she's praying for the family of the officer killed in the line of duty and the officer who was injured". Based on the postings to a Facebook page purportedly belonging to Green which was taken down by the company Friday afternoon, he was a self-described admirer of Louis Farrakhan's Nation of Islam.
Since then security officials have said there is an ongoing threat from extreme-right groups and Trump supporters.
Capitol Hill has been tense over the past three months. Fencing that prevented vehicular traffic near that area was only recently removed. We extend our deepest condolences to his family, and wish the second officer harmed in this attack a full recovery. "And today is just another example of what they do every day for us to put their lives on the line and officers across the country".
What do we know about the attack?
The incident unfolded shortly before 2pm local time in Washington DC.
The message added: "If you are outside, seek cover". "All three have been transported to the hospital", the Capitol Police tweet said. At least one officer, drew their weapon and shot the suspect.
See footage of the scene below.
Onlookers were told to clear the area.
The suspect who was killed by Capitol Police has been identified as Noah Green, law enforcement sources told ABC News.
The FBI's Washington Field Office is responding to the situation and is now providing support to the Capitol Police.
Capitol Police and National Guard troops were called upon soon afterward to secure the Capitol during Biden's inauguration and faced another potential threat in early March linked to conspiracy theories falsely claiming Trump would retake the presidency.
The incident comes almost three months after the deadly 6 January riot at the Capitol.