NORTH PLATTE - Authorities are investigating a fatality accident on a snowy Interstate 80 east of North Platte on Friday.

The Nebraska State Patrol says two people were killed in a "serious accident" between mile marker 177 and 179.

Emergency responders closed the eastbound lanes of I-80. Traffic was at a standstill for several hours. One lane reopened at approximately 8:30 p.m. Friday. 

No cause of the crash has been announced. Snow was falling and covering up the road as a post-Thanksgiving snow storm pushed through central Nebraska at the time of the accident.

An investigation into the crash continues. 

 Weather conditions at North Platte at 8 a.m. CST Saturday.