(KLZA)-- Cass County, Nebraska Sheriff William Brueggemann has released more details of a Sunday evening wreck that occurred about 7:15 on Highway 75,  just south of Union, Nebraska, that claimed the lives of four Topeka, Kansas, residents.

According to a news release,  a pickup truck driven by 55-year-old Ronald Dubas of La Vista, Nebraska was northbound on Highway 75, crossed the center line and collided with a southbound Chevrolet Cobalt, driven by a 21-year-old female.  

The cause of the collision is being investigated. 

The driver of the Cobalt and three passengers died in the wreck while a fifth occupant, age 20, who was a front seat passenger is lited in critical condition at an Omaha Hospital.  

Killed in the crash were back seat passengers, a 22-year-old female,  a 4-year-old female and a 5-year-old female.
The names of the victims in the Cobalt have not been released. 

Dubas was transported to the University of Nebraska Medical Center with non life threatening injuries. 

The Cass County Sheriff's Office and th Nebraska State Patrol are investigating the accident.