TOPEKA (KSNT) – It was a deadly weekend in Kansas after six people lost their lives in car crashes.

A Sunday crash in Riley County north of Randolph killed one man, according to the Kansas Highway Patrol. When the driver of a semi-truck didn’t stop at a stop sign at the intersection of U-77 and Kansas Highway 16, they hit the side of Adam Lee Samuelson’s Acura TL, pushing it into a ditch.

Emergency crews took Samuelson to Stormont Vail Hospital, where medical staff pronounced him dead.

On Saturday, a 35-year-old woman and a 43-year-old man were killed in Harvey County after the car she was driving left the road and hit a guardrail.

Stephanie Manyseng and Rudy Perez-Marcial, both of Wichita, died in the accident. Their car “vaulted” into the air after hitting a bridge structure on I-135 just north of Southeast 14th Street in Newton, according to the Kansas Highway Patrol. The accident happened at 7:35 a.m.

Four of five others in the van had serious injuries. The 16-passenger van was carrying seven people.

In Johnson County, both drivers in a two-car crash died after a head-on collision.

The Kansas Highway Patrol says a wrong-way driver on Interstate 35 south of Lamar Avenue caused a head-on collision that killed him and the driver of the pickup truck he hit. 

Investigators say 23-year-old Sam Wilson, of Greenwood, Missouri, was driving the wrong-way vehicle and died at the scene. The driver of the second truck, 23-year-old Robert Mangelsdorf Jr. of Tonganoxie, was rushed to a hospital, where he later died from his injuries.

The accident happened at 3:20 a.m.

In Brown County, there was one fatality when a car headed southbound near 240th Street and Prairie Road ran off into a ditch.

The vehicle jumped a creek, struck an embankment then struck a wooden post, rolled on its top, and came to rest in a field. The crash about four miles east of Hiawatha happened just before 7 p.m. Saturday night.

The Kansas Highway Patrol has not released the name of the driver as of Monday morning.