Lawrence police are awaiting blood-test results to see if alcohol contributed to a one-vehicle accident that injured a Topeka man Saturday in western Lawrence.

Sgt. Matt Sarna, a Lawrence police spokesman, said Tuesday that officers were also still trying to determine how fast 24-year-old Randal Hogue was driving before his gold 2004 Chrysler Sebring rolled over at the intersection of Clinton Parkway and Lake Pointe Drive.

Police released more information about the accident that occurred 9:30 p.m. Saturday. Sarna said evidence at the scene indicated Hogue was driving west on Clinton Parkway, and that skid marks on the pavement indicate he tried to slow down before entering the roundabout at Lake Pointe Drive.

But the vehicle slid sideways into the landscaping curb, and the car rolled over and landed upside down in the middle section of the roundabout. Hogue, who was not wearing a seat belt, was ejected through the driver’s side window, Sarna said.

Sarna said Hogue was listed in stable condition Tuesday at a Topeka-area hospital. He was flown via helicopter ambulance to Stormont-Vail Regional Health Center.