A pedestrian died late Thursday after a vehicle struck them as they walked a bicycle across Interstate 10, the Arizona Department of Public Safety said.

The collision occurred around 10:45 p.m. at milepost 136 on eastbound I-10. The pedestrian was crossing all traffic lanes when the vehicle hit them from the side. They were pronounced dead at the site of the crash.

The motorist stayed and spoke with investigators. State officials ruled out alcohol and drugs as factors in the collision.