TUCSON, Ariz. - (KVOA) The Pima County Sheriff's Department is currently investigating a collision that has shut down part of Old Nogales Hwy. Sunday afternoon.

According to PCSD, the crash took place at South Old Nogales Hwy. and E. Lumber St.

South Old Nogales Hwy. is closed in both directions.

Drivers are asked to find an alternate route. Stay with News 4 Tucson as we learn more.

See Full Page