Updated

Anti-Israel demonstrators descended on Washington, D.C., on Wednesday as Israeli Prime Minister Benjamin Netanyahu addressed Congress in a scene that quickly turned chaotic. 

At least one demonstrator, whose face was covered, was spotted by Fox News carrying what appeared to be the flag of the terrorist group Hamas, while others were heard shouting "allahu Akbar." 

At Union Station, agitators burned an American flag and vandalized a Christopher Columbus statue with the words "Hamas is coming." They also took down an American flag and flew the Palestinian flag instead. 

A man who walked by the statue and remarked that he was Jewish and was offended by the language was then chased down the street and yelled at and called "Hitler" by agitators. He and a woman were later let inside a building to get away from the protesters. When a Fox News reporter asked why they followed the man, one said it was because he was White and Jewish. 

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The US Capitol Police later advised, "No flags under our protection have been removed or vandalized. Our officers will enforce the law if anyone attempts to remove a flag in USCP jurisdiction. To clear up inaccurate reporting."

Union Station, where the American flag was removed, is not on the U.S. Capitol Grounds.

Video on social media captured a person who tried to save the American flag as it was being burned at Union Station.  Protesters chased after the man, ripping it away from him, but he proudly displayed a scrap of it in a picture seen later on X. 

Reacting to a photo of a protester holding a Hamas flag, House Speaker Mike Johnson, R-La., wrote simply on X: "Terrorists."

Earlier in the day, hundreds of protesters had gathered on Pennsylvania Avenue and 3rd Street, outside the Gallery of Art. The protest organizers included Answer Coalition and Code Pink. There were numerous speakers from various organizations, including one from the Party for Socialism and Liberation. 

Protester holding Hamas flag

A pro-Hamas protester is seen holding a Hamas flag during a march. (Lucas Tomlinson/Fox News Digital)

Anti-Israel protesters burning an Israeli flag

Pro-Palestinian demonstrators burn an Israeli flag on the day of Israeli Prime Minister Benjamin Netanyahu's address to a joint meeting of Congress on Capitol Hill in Washington, D.C., on Wednesday. (Reuters/Nathan Howard)

Protesters vandalize Union Square with "Hamas is coming"

Pro-Hamas protesters tagged a statue at Union Station with "Hamas is Coming." (Katie Pavlich)

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Palestinian flag seen flying over Union Square

Pro-Palestinian protesters took down an American flag flying over Union Square, replacing it with a Palestinian flag on Wednesday. (Eyal Yakoby)

Pro-Hamas protesters vandalized a bell at Union Station on Wednesday. 

Pro-Hamas protesters vandalized a bell at Union Station on Wednesday.  (Katie Pavlich)

Protester being arrested

A demonstrator is taken into custody after protesting the visit of Israeli Prime Minister Benjamin Netanyahu in Washington, D.C., on Wednesday. (AP Photo/Jose Luis Magana)

Protester carries Hamas flag in DC

One anti-Israel demonstrator in Washington, D.C., on Wednesday was spotted carrying the Hamas flag.  (Fox News/ Griff Jenkins)

Fox News crews witnessed numerous signs with Netanyahu’s face, labeling him a "Wanted War Criminal." 

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Even inside Capitol Hill, Rep. Rashida Tlaib, D-Mich., held up a sign that said "war criminal" while listening to Netanyahu's speech. 

Rashida Tlaib holding up a sign that says war criminal

Rep. Rashiada Tlaib, D-Mich., holds up a sign that says "war criminal" during Israeli Prime Minister Benjamin Netanyahu's speech.  (CSPAN)

Other slogans from protesters on signs included "Stop the Genocide," "Stop arming Israel" and "End all US Aid." 

Protesters holding up signs

Protesters holding up anti-Israel signs in Washington, D.C., on Wednesday. (Michael A. McCoy/Getty Images)

The crowds also chanted "Free Palestine" and "From the river to the sea…," an antisemitic phrase that calls for the elimination of the state of Israel. 

Pro-Hamas protesters tagged Union Station with "F--- Israel" but spelled incorrectly. 

Pro-Hamas protesters tagged Union Station with "F--- Israel" but spelled incorrectly.  (Katie Pavlich)

Anti-Israel protests in DC

Anti-Israel protesters have gathered in Washington, D.C., ahead of Israeli Prime Minister Benjamin Netanyahu's address to Congress.  (Fox News)

The speakers later concluded and the crowd of attendees started walking up Pennsylvania Avenue. 

Police guard American flag at Union Station

Police officers try to stop pro-Palestinian demonstrators from taking down a U.S. flag outside Union Station on the day of Israeli Prime Minister Benjamin Netanyahu's address to a joint meeting of Congress on Capitol Hill in Washington, D.C., on Wednesday. (Reuters/Nathan Howard)

Netanyahu protesters holding up an effigy

(Michael A. McCoy/Getty Images)

Protesters clashing with police

U.S. Capitol Police officers clash with anti-Israel demonstrators, on the day Israeli Prime Minister Benjamin Netanyahu addresses a joint meeting of Congress on Capitol Hill in Washington, D.C., on Wednesday. (Reuters//Umit Bektas))

Protesters waving flags

Anti-Israel protesters march near the U.S. Capitol as Israeli Prime Minister Benjamin Netanyahu addresses a joint meeting of Congress on Capitol Hill in Washington, D.C., on Wednesday. (Andrew Thomas/AFP via Getty Images)

Police formed a blockade on the corner of Constitution and Louisiana Avenues, and demonstrators released red and green powder into the air. 

Police remove DC Anti-Israel protesters blocking traffic

D.C. Metropolitan Police clear demonstrators from blocking traffic on Wednesday in Washington, D.C., ahead of Israeli Prime Minister Benjamin Netanyahu's visit to the U.S. Capitol. (AP Photo/Mike Stewart)

Some protesters yelled at the police line, "You're a b----." Fox News witnessed pepper spray being used at one point. 

U.S. Capitol Police said six people were arrested after disrupting the joint meeting of Congress on Wednesday afternoon.

Police using pepper spray on protesters

Police use pepper spray on anti-Israel demonstrators as they gather on the day of Israeli Prime Minister Benjamin Netanyahu's address to a joint meeting of Congress on Capitol Hill in Washington, D.C., on Wednesday. (Reuters/Nathan Howard)

"All of them were immediately removed from the Gallery and arrested," Capitol Police said in a post on X. "Disrupting the Congress and demonstrating in the Congressional Buildings is against the law."

Capitol Police originally said five people had been arrested, but later updated it, saying, "Our officers just reported that the final number of arrests in the House Galleries was a total of six people for D.C. Code §10-503.16(b)(2), Unlawful Conduct."

Line of anti-Israel demonstrators in DC street

Demonstrators blocking traffic on Independence Ave. near the National Mall ahead of a scheduled visit by Israeli Prime Minister Benjamin Netanyahu to the U.S. Capitol in Washington, D.C., on Wednesday. (AP Photo/Matt Slocum)

Earlier, D.C. Metropolitan Police Department officers were seen clearing anti-Israel protesters who were blocking traffic in the nation's capital on Wednesday. 

Police pepper spraying protesters

U.S. Capitol Police officers use pepper spray on anti-Israel demonstrators on the day Israeli Prime Minister Benjamin Netanyahu addresses a joint meeting of Congress on Capitol Hill in Washington, D.C., on Wednesday. (Reuters/Umit Bektas)

Police have taken people into custody near the U.S. Capitol, The Associated Press reported. 

DC officers confront anti-Israel protesters blocking street

D.C. police begin to clear demonstrators from blocking traffic on Independence Ave., near the National Mall in Washington, D.C., on Wednesday (AP Photo/Matt Slocum)

A handful of people were led away by officers, while others chanted for them to be released.

Protesters washing pepper spray out of eyes

An anti-Israel protester has his eyes washed after police used pepper spray during anti-Israel demonstrations on Capitol Hill in Washington, D.C., on Wednesday. (Reuters/Nathan Howard)

More than 1,000 people gathered Wednesday morning on Pennsylvania Avenue within sight of the Capitol building, the AP reported. 

Anna Paulina Luna, Rashida Tlaib

At one point, Rep. Anna Paulina Luna, R-Fla., was seen speaking with Tlaib on Wednesday. (Getty Images)

A large group of protesters marched toward the Capitol after blocking a nearby intersection and calling for a "student intifada." 

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Protesters burning effigy of Netanyahu and an American flag

Anti-Israel demonstrators burn a U.S. flag and an effigy depicting Israeli Prime Minister Benjamin Netanyahu on the day of Netanyahu's address to a joint meeting of Congress on Capitol Hill in Washington, D.C., on Wednesday. (Reuters/Nathan Howard)

"Shut it down!" they repeatedly chanted.

Protesters burning American flag

Pro-Palestinian demonstrators burn a U.S. flag on the day of Israeli Prime Minister Benjamin Netanyahu's address to a joint meeting of Congress on Capitol Hill in Washington, D.C., on Wednesday. (Reuters/Nathan Howard)

Pro-Palestinian-demonstrators burning effigy of Netanyahu

Anti-Israel demonstrators burn an effigy depicting Israeli Prime Minister Benjamin Netanyahu on the day of Netanyahu's address to a joint meeting of Congress on Capitol Hill in Washington, D.C., on Wednesday. (Reuters/Nathan Howard)

"Bibi, Bibi, We’re not done! The intifada has just begun!" demonstrators shouted, referring to Netanyahu by his nickname.

Just after 3 p.m., the U.S. Park Police said on social media that a "crowd in Columbus Circle is engaged in criminal activity and confronting law enforcement on scene. USPP is attempting to deescalate and contact the event organizer for help."

Around 15 minutes later, the Park Police advised that the Columbus Circle protest permit had been revoked, adding, "Please leave the area at this time."

Park Police said just after 4 p.m. that a crowd remained at Columbus Circle, again advising on social media for protesters to disperse. 

Fox News' Meghan Tome and The Associated Press contributed to this report.