FBI investigating explosion outside NAACP office in Colorado

The FBI is investigating an explosion outside a local NAACP chapter in Colorado.

A makeshift bomb, or improvised explosive device, detonated Tuesday morning but failed to ignite a gasoline can placed alongside it. No one was injured, but the incident left some shaken in Colorado Springs.

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The FBI has asked that anyone with information call its Denver tip line at 303-435-7787.

CNN’s Michael Martinez contributed to this report.

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