COZAD, Neb. -- Authorities said there was an accident Thursday night due to slower traffic.

The Nebraska State Patrol said that an accident happened at mile marker 215 on Interstate-80 around 6:00 p.m.

NSP said that a semi was heading east when they had slowed down because of slower traffic ahead of it. The semi was then rear-ended by the driver of a Chevrolet Trax, 52-year-old Lori Shrader-Keirnes of Cozad. 

Authorities said that Schrader-Keirnes was pronounced dead at the scene. The driver of the semi was not injured. 

NSP said that I-80 eastbound was closed for about 90 minutes.