Phoenix, United States - November 10, 2025 11/09/2025 08:13 pm GMT-0700 PHOENIX, Ariz. – Firefighters from the cities of Phoenix and Glendale responded to a motorcycle-involved traffic collision at the intersection of 51st Avenue and Thunderbird Road on Sunday evening. Upon arrival, police discovered a passenger car had collided at a high rate of speed with a motorcycle carrying two riders. Phoenix Fire Department personnel transported both motorcycle riders to a local hospital, where at least one is reported to have sustained life-threatening injuries. Following the crash, police closed the intersection in all directions to conduct their investigation. Officers were seen administering a field sobriety test to the female driver of the passenger car, but the results of that test remain unknown. The Glendale Police Department confirmed that the Phoenix Police Department is leading the investigation.