ISP: 71-year-old driver killed after crashing into the back of a truck on Highway 18

Sioux County, IA – Iowa State Patrol officials said the fatal accident occurred right after 2 p.m. Monday afternoon.

It happened on Highway 18.

Iowa State Patrol troopers responded to a report of a crash.

The responding troopers discovered that the 71-year-old driver was driving westbound when he struck the back of a truck.

The truck was reportedly stopped and waiting for traffic to clear before turning left.

The 71-year-old man suffered life-threatening injuries and was taken to a hospital, where he later died.

He was later identified as Curtis Brownmiller.

The 43-year-old truck driver was not injured.

He was later identified as Jeffrey Hoef.

This incident remains under investigation.

This is a developing story and it will be updated as new information become available.