The FBI and law enforcement in Colorado are investigating a possible act of terrorism after multiple people attending a weekly pro-Israel gathering in Boulder to honor hostages kidnapped by Hamas were attacked by a suspect seen throwing Molotov cocktails in their direction. 

FBI Director Kash Patel wrote on X that the bureau was “fully investigating” what he described as a “targeted terror attack” in Boulder on Sunday, while FBI Deputy Director Dan Bongino said they were probing the incident as an “act of terror, and targeted violence” while asking for anyone with information to contact the bureau.

One person was arrested after throwing a Molotov cocktail towards the pro-Israel demonstrators, according to Boulder Police Chief Steve Redfearn. Speaking to reporters from the scene of the attack, Redfearn said authorities were called to the area responding to calls “that people were being set on fire” by “a man with a weapon.” 

Redfearn also said that victims, attendees of the weekly Boulder Run for Their Lives event calling for the release of the remaining hostages in Gaza, had “injuries consistent with burns and other injuries,” though he could not provide an estimate for the number of individuals who were harmed in the attack. 

He warned that some of those injuries could be life threatening. At a Sunday evening press conference, Redfearn said the victims ranged in age from 67 to 88 years old, “at least one” of whom “was very seriously injured, probably safe to say, [in] critical condition.” The 88 year old victim fled Nazi persecution in Europe, Rabbi Yisroel Wilhelm, the Chabad director at the University of Colorado Boulder, told CBS Colorado.

At a press conference Sunday, FBI Denver Special Agent in Charge Mike Michalek identified the suspect as Mohamed Sabry Soliman. Fox News reported that Soliman is an “Egyptian national in the U.S. illegally as a visa overstay who entered the U.S. during the Biden administration,” citing senior Department of Homeland Security officials. 

Soliman arrived in the U.S. in August 2022 on a visa that expired in February 2023, filing a claim with U.S. Citizenship and Immigration Services in September 2022 for a work visa that was approved for a two-year period in March 2023. He remained in the U.S. illegally despite his work authorization expiring in March of this year.

Videos circulating on social media of the attack showed Soliman shouting “end Zionists.”

Colorado Gov. Jared Polis, a Democrat, said in a post on X that he was “closely monitoring the situation in Boulder” and said that his state was working “with local and federal law enforcement to support this investigation.”

In a second statement on his personal account, Polis wrote that, “As the American Jewish community continues to reel from the horrific antisemitic murders in Washington, D.C., it is unfathomable that the Jewish community is facing another terror attack here in Boulder, on the eve of the holiday of Shavuot no less.”

“Several individuals were brutally attacked while peacefully marching to draw attention to the plight of the hostages who have been held by Hamas terrorists in Gaza for 604 days. I condemn this vicious act of terrorism, and pray for the recovery of the victims,” he continued.

Sen. Michael Bennet (D-CO), who is running to replace the term-limited Polis, described the incident as a “horrifying terror attack” in a statement posted to X. “My thoughts are with the victims of the horrifying terror attack that occurred this afternoon in Boulder. Hate and violence of any kind will not be tolerated in Colorado,” Bennet wrote.

Sen. John Hickenlooper (D-CO) wrote on the platform that, “Hate of any kind has no home in Colorado. We’re monitoring the reports of a horrific terror attack in Boulder this afternoon. Our thoughts are with the victims and their loved ones.”

Senate Minority Leader Chuck Schumer (D-NY) also said that he was “closely monitoring the situation in Boulder,” adding, “This is horrifying, and this cannot continue. We must stand up to antisemitism.”

A White House official said late Sunday that President Donald Trump “has been briefed” on the attack.

The attack comes less than two weeks after the murder of two Israeli Embassy staffers attending an American Jewish Committee event in Washington. The alleged shooter yelled “Free Palestine” shortly after committing the crime.

In April, during the first night of Passover, an arsonist tried to burn down Gov. Josh Shapiro’s residence. The perpetrator cited the governor’s support for Israel as his motive.