Two people were killed and another person was injured after a single-vehicle rollover crash on C470 in Highlands Ranch on Saturday.

State troopers were sent to the area of C470 and Lucent Boulevard just after 2 p.m. after reports of the crash, said Sgt. Troy Kessler, a spokesman with the Colorado State Patrol.

A 34-year-old man and child died in the crash and were pronounced dead on scene. Another child, 8, suffered a broken arm, Kessler said.

The victims have not been identified.

An investigation into what led to the crash is underway. Kessler did not know whether speed, drugs or alcohol played a role in the crash.

C470 remains open while the investigation takes place, however, the westbound express lane is currently closed.