ST. CHARLES, Mo. — A West Des Moines couple was killed in a car accident in the St. Louis suburb of St. Charles Sunday and officials are investigating with the other driver involved was drunk.

The accident happened just after 2:00 Sunday morning in the westbound lanes of I-70. A crash report from the Missouri State Highway Patrol said the operator of a Chevy Corvette was driving recklessly when the car hit the rear of the Iowa couple’s 2010 Prius.

Sixty-one-year-old Kristi Anderson was thrown from the car on impact. The two cars eventually went off the roadway, where the Prius overturned. That’s when 59-year-old Steven Anderson was ejected from the car.

Both Kristi and Steven were pronounced dead at the scene. Neither had been wearing a seatbelt, according to the crash report.

A public information officer with the Missouri State Highway Patrol confirmed to WHO 13 that 55-year-old Larry L. Larsen of O’Fallon, Missouri, the driver of the Corvette, was taken into custody on suspicion of driving while intoxicated after the crash.

Larsen was in jail on a 24-hour hold but has since been released. The MSHP said charges are pending the results of toxicology testing to determine the degree of Larsen’s impairment.