A man armed with a baseball bat and demanding to see Representative Gerald E. Connolly, Democrat of Virginia, attacked and injured two staff aides in a destructive rampage inside the congressman’s Fairfax, Va., office, the latest episode in a surge of political violence across the country.
Xuan Kha Tran Pham, 49, of Fairfax, was facing charges for one count of felony aggravated malicious wounding and one count of malicious wounding, according to the Fairfax City Police Department. He was being held without bond.
Police said they had not yet identified a motive, and Capitol Police said in a statement that the suspect was not known to them.
Sgt. Lisa Gardner, a spokeswoman for the Fairfax City Police, said at a news conference on Monday afternoon that the assailant walked into Mr. Connolly’s office around 10:30 a.m. with what appeared to be a metal baseball bat and struck two staff members in the upper body.
Both staff members were conscious when the police arrived about five minutes after a 911 call, she said. Mr. Connolly said in a statement that the individual had committed “an act of violence” and that the two aides had been taken to a hospital with non-life-threatening injuries.
“You could absolutely tell that the people inside were scared; they were hiding,” Sergeant Gardner said.
“It’s quite frankly scary that someone can walk up to an office with a baseball bat and just start swinging at innocent victims,” she added.
Mr. Connolly represents a swath of the Northern Virginia suburbs west of Washington, D.C. He was first elected to Congress in 2008. In a statement after the attack, he said he had “the best team in Congress.”
“My district office staff make themselves available to constituents and members of the public every day,” Mr. Connolly said in the statement. “The thought that someone would take advantage of my staff’s accessibility to commit an act of violence is unconscionable and devastating.”
Mr. Connolly told CNN that the attacker struck one of his senior aides in the head with the metal bat, and hit an intern — on her first day on the job — in the side with the bat.
While members of Congress are protected on Capitol Hill by the United States Capitol Police, their district offices generally do not receive such protection unless there is a specific known threat to the member.
In Monday’s attack, the assailant caused substantial damage in Mr. Connolly’s office, shattering glass in a conference room and breaking computers.
Last year, Mr. Pham filed a federal lawsuit in Virginia against the C.I.A. alleging that the agency had imprisoned him for decades in a “lower perspective based on physics called the book world” and demanding $29 million. The suit, which was handwritten, claimed the agency was “brutally torturing” him with a “degenerative disability” from the “fourth dimension.
Representative Hakeem Jeffries of New York, the top Democrat in the House, called the attack “horrific.”
“We are grateful for the members of law enforcement and medical professionals who swiftly acted to apprehend the suspect and care for the affected members of our Capitol Hill community,” Mr. Jeffries said. “The safety of our members and of our staff remains of paramount importance, particularly given the increased instances of political violence in our country.”
Mr. Jeffries said he asked the House sergeant-at-arms and the Capitol Police to “take every available precaution to protect members and our staff, who serve the American people with patriotism and passion and deserve to do so without fear for their safety.”
The attack comes amid a rise in threats and violent political speech against members of Congress in recent years. In October, an intruder bludgeoned Representative Nancy Pelosi’s husband, Paul, with a hammer inside their San Francisco home after the attacker shouted, “Where is Nancy?”
Last month, J. Thomas Manger, the Capitol Police chief, testified on Capitol Hill about the heightened threat climate across the country. Last year, there were more than 7,000 threats against members of Congress.
“One of the biggest challenges we face today is dealing with the sheer increase in the number of threats against members of Congress — approximately 400 percent over the past six years,” he said. “Over the course of the last year, the world has continuously changed, becoming more violent and uncertain.”
