Shooting at large biker gathering in Waterloo, Iowa, leaves 1 dead, several wounded - NBC News

An Iowa gathering of over 100 people from motorcycle clubs turned deadly early Saturday morning with a shooting that killed at least one person and left several others wounded.

Upon arrival, officers found about a dozen people who had been injured or shot, said Waterloo Police Chief Joel Fitzgerald at a press conference Saturday morning.

Paramedics and firefighters also responded to the chaotic scene, and many of those injured were taken to nearby hospitals, police said.