At least eight people have been injured after a 45-year-old man threw incendiary devices at demonstrators in Boulder, Colorado, during a rally held to remember Israeli hostages held in Gaza, authorities said.
Eight victims aged between 52 and 88 years were transported to hospitals, the FBI special agent in charge of the Denver Field Office, Mark Michalek, said. At least one of them was in a critical condition, authorities said.
Colorado Attorney General Phil Weiser said it appeared to be "a hate crime given the group that was targetted".
Boulder Police Chief Stephen Redfearn said he did not believe anyone else was involved. "We're fairly confident we have the lone suspect in custody," he said.
The attack took place on the Pearl Street Mall, a popular pedestrian shopping district in the shadow of the University of Colorado, during an event organised by Run for Their Lives, an organisation devoted to drawing attention to the hostages seized in the aftermath of Hamas' 2023 attack on Israel.
Brooke Coffman, a 19-year-old at the University of Colorado who witnessed the Boulder incident, said she saw four women lying or sitting on the ground with burns on their legs. One of them appeared to have been badly burned on most of her body and had been wrapped in a flag by someone, she said.
The attack follows last month's arrest of a Chicago-born man in the fatal shooting of two Israeli embassy employees in Washington, D.C.

Trump adds seven countries to full travel ban list
Indian parliament votes to allow private firms in nuclear power sector
Doctors in England start five-day walkout during flu surge
Israeli settler kills 16-year-old Palestinian in West Bank, mayor says
Paris' Louvre reopens partially but staff vote to extend strike
Delhi restricts vehicles, office attendance in bid to curb pollution
India summons Bangladesh envoy over security concerns in Dhaka
Alleged Bondi gunman charged with 15 murders as funerals of victims begin
