Federal agents are investigating what they’re calling a “targeted terror attack” in Boulder, Colorado after multiple people were burned by what appear to be Molotov cocktails.

The incident occurred this afternoon at the city’s Pearl Street Mall during a pro-Israel demonstration called the “Run for Their Lives” walk … a peaceful gathering where participants bring awareness to the hostages being held in Gaza.

According to reports, incendiary devices — which officials say were bottles full of flammable liquid that exploded — were thrown at the event. At least five people were burned in the attack, according to authorities. Their condition is unknown.

The Justice Department’s head of the antisemitism task force Leo Terrell said, “This antisemitic terrorist attack is part of a horrific and escalating wave of violence targeting Jews and their supporters simply for being Jewish or standing up for Jewish lives.’