Multiple people have been injured in Boulder, Colorado after someone used a weapon to set people on fire during a demonstration.
The demonstrations, held by Run for Their Lives, are regularly scheduled, saying they are looking to continue awareness of hostages held by Hamas in Gaza.
Boulder's Police Chief Stephen Redfearn said a suspect was already custody, after using a "makeshift flamethrower" and incendiary device, but required hospitalisation for minor injuries.
The suspect has now been named as 45 year old Mohamed Sabry Soliman.
Redfearn also called on people to stay away from the area while police investigate a vehicle possibly linked to the attack and confirmed that K-9 and hazmat teams are working to clear the area for devices.
“The area is not safe yet,” he said.
Redfearn also confirmed that the intention behind the attack was unclear at this stage, whether it was targeted or random violence.
“It’s way too early to speculate motive."
However, FBI Director Kash Patel labelled the incident a “a targeted terror attack” and that agents were assisting police on the scene.
“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,” he wrote on X.