PUEBLO, Colo. -

The Pueblo County Coroner has identified the two people killed in a single rollover crash Saturday morning.

Caitlin Vinsonhaler, 19, and Sean Himmelberg, 22, died near Highway 47 and Troy Ave. just after 1 a.m.

Police say the two were in a silver Subaru heading east on Highway 47 when the driver lost control of the car, causing it to roll several times. Vinsonhaler and Himmelberg were thrown from the car.

Police don't believe they were wearing a seatbelt.

Based on what witnesses said, police believe speed was a factor in the accident. It's unknown if alcohol or drugs were also involved.