Six people were injured Sunday in an attack near a peaceful pro-Israel gathering in Boulder, Colo. The FBI and local law enforcement are investigating it as an act of terrorism.

A suspect in custody used a “makeshift flamethrower” and incendiary devices, Mark Michalek, FBI special agent in charge, said at an evening press briefing. The suspect, identified as Mohamed Soliman, 45, “was heard to yell ‘free Palestine,’ during the attack” Michalek said.

The victims, attending a regular weekly event, ranged in age from 67 to 88 and all are hospitalized, with two people having been airlifted to a burn unit.,

Boulder Police Chief Stephen Redfearn said authorities believe they have the sole suspect in the incident.

Initially, the Boulder Police Department said officers responded to “reports of several victims” at a pedestrian mall and evacuated several blocks in the area near 13th and Pearl streets.

FBI Director Kash Patel quickly called the incident a terror attack.

“We are aware of and fully investigating a targeted terror attack in Boulder, Colorado. Our agents and local law enforcement are on the scene already, and we will share updates as more information becomes available,” Patel said in a statement posted to X.

A White House official told NewsNation that President Trump has been briefed on the situation.

The incident took place at approximately 1:26 p.m. local time, after police received calls about a man setting people on fire, police said.

The suspect was pointed out to officials and taken into custody without incident. The man was transported to the hospital with minor injuries, according to police.

Director of National Intelligence Tulsi Gabbard said on X that the National Counterterrorism Center has teamed up with law enforcement to investigate the “the targeted terror attack against a weekly meeting of Jewish community members who had just gathered in Boulder, CO to raise awareness of the hostages kidnapped during Hamas’ attack on Israel on Oct. 7.”

Colorado Gov. Jared Polis (D) called the incident a “heinous act of terror.”

“I am closely monitoring the situation in Boulder, and my thoughts go out to the people who have been injured and impacted by this heinous act of terror. Hate-filled acts of any kind are unacceptable,” Polis wrote on X.

Colorado Attorney General Phil Weiser said in a statement the “attack appears to be a hate crime given the group that was targeted.”

The local Boulder Jewish community said in a statement that the incident took place during a walk organized by Run for Their Lives, an organization that aims to raise awareness for hostages still held in Gaza.

“We are saddened and heartbroken to learn that an incendiary device was thrown at walkers at the Run for Their Lives walk on Pearl Street as they were raising awareness for the hostages still held in Gaza,” the statement read. “We don’t have all the details of what is unfolding, and we promise to keep our community informed.”

“Our hearts go out to those who witnessed this horrible attack, and prayers for a speedy recovery to those who were injured,” read the statement, which was signed by three rabbis of local congregations, two representatives of the Boulder Jewish Community Center (JCC), and a representative of the University of Colorado Boulder Hillel.

Congressional lawmakers widely condemned the attack.

“This violent, antisemitic attack is heartbreaking and deeply disturbing. We pray for the victims and for law enforcement to deliver swift justice,” Speaker Mike Johnson (R-La.) said on X.

“This is unconscionable and unacceptable,” Sen. John Fetterman (D-Pa.) posted. “I will never understand these kinds of disgusting acts of terror—and we must call out the rampant antisemitism while working toward a solution where Jewish people can live peacefully.”

Updated at 8:57 p.m. EDT