HAYS — Authorities are investigating after a Hays police officer shot and killed a suspect.

The Ellis County attorney said in a news release that the shooting happened Thursday afternoon after an officer stopped a vehicle for a traffic infraction in Hays. The release said the white driver refused to obey the officer’s commands and sped off as backup officers responded.

The release said that after being stopped again, the driver got out of the car and again ignored the commands of police. Police said that the “incident escalated” until an officer fired one shot, striking and killing the driver.

The driver was identified only as a 36-year-old man.

The Kansas Bureau of Investigation and Ellis County Sherriff’s Office are investigating. No other details were immediately available.