Four people are hurt after an early morning crash in Sparks. 

It happened at the intersection of east McCarran Boulevard and Nugget Avenue, just after 12:30 a.m.

Nevada State Police troopers say one car ran a red light and hit the other car that was getting off Interstate 80.

One person suffered life-threatening injuries, while the other three have serious injuries.

Alcohol and speed are believed to be factors in the crash.