Police in Boulder, Colorado, are responding to an attack at the Pearl Street Mall that they say left several victims. A suspect was taken into custody, police said. KMGH

Police in Boulder, Colorado, are responding to a "heinous" attack at a pedestrian mall in the city that they say left several victims, including some that appear to be life-threatening. A suspect was taken into custody without incident, police said.

While many of the details were not immediately clear, FBI Director Kash Patel said officials were investigating the incident as a "targeted terror attack."

"Our agents and local law enforcement are on the scene already, and we will share updates as more information becomes available," Patel said. Colorado Gov. Jared Polis also called the attack a "heinous act of terror."

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