Tucson police have reported that the woman involved in Sunday night's motorcycle collision has died.
The woman has been identified as 59-year-old Juanita Garcia.
According to TPD, officers responded to a report of a serious injury collision involving a truck and a motorcycle on E. Valencia and S. Nogales Highway around 7:11 p.m.
Upon arrival, they located Garcia and an adult male. They were both transported to a local hospital where Garcia was later pronounced dead.
The driver of the truck and a passenger remained on the scene and were not injured.
Detectives were able to determine that Garcia was the passenger on the man's motorcycle and neither of them was wearing a helmet.
Neither speed nor drugs or alcohol impairment appear to be factors.
Detectives are continuing to investigate.