WATCH: Four cars involved in scary accident on final lap of Iowa IndyCar race

WATCH: Four cars involved in scary accident on final lap of Iowa IndyCar race

Four cars were involved in a last-lap accident during Sunday’s Hy-Vee OneStep 250 at Iowa Speedway that saw Sting Ray Robb’s car go flying through the air.

Kyle Kirkwood, Alexander Rossi, and Ed Carpenter were also involved, and the incident was triggered when Rossi’s car mysteriously ran out of fuel. Each of the three drivers were O.K. after the wreck. Robb was sent to the hospital out of an abundance of caution for further evaluation.

The replay can be seen below.