9 dead in 'chaotic' traffic collision in North Las Vegas

Nine people died on Saturday in a "chaotic" traffic collision involving six vehicles in North Las Vegas, officials said.

Nine people died on Saturday in a "chaotic" traffic collision involving six vehicles in North Las Vegas, officials said.

“We have not seen a mass-casualty traffic collision like this before,” Alexander Cuevas, public information officer for the North Las Vegas Police, told reporters late Saturday.

Fifteen people had been involved in the incident, Cuevas said. Two were transported from the scene to University Medical Center, where one later died, he said. The other remained in critical condition, he said.

Officials said speed was a factor in the crash. It was unknown whether impaired driving had been a factor, they said.