Law enforcement officials in the Phoenix metropolitan area are actively investigating a series of three hit-and-run incidents that have occurred within the last week. The Arizona Department of Public Safety and local police departments are seeking information regarding multiple suspects and vehicles involved in these separate crashes. In one instance near 27th Avenue and Northern Avenue, a witness identified a driver who allegedly ran a red light. This witness followed the vehicle, enabling police to locate and arrest the driver associated with that specific crash. However, authorities are still searching for two other individuals linked to more severe incidents. Investigators are looking for the driver of a white SUV involved in a fatal crash near Third Avenue and Indian School Road, where a 57-year-old pedestrian was killed. Additionally, police are searching for a 2014 to 2016 Mazda 3 after a 16-year-old girl was struck in a crosswalk in Tempe, suffering life-threatening injuries. Arizona law mandates that drivers involved in accidents must stop, exchange information, and provide reasonable aid. Authorities urge anyone with information regarding the white SUV or the Mazda 3 to contact the Phoenix Police Department or the Tempe Police Department immediately. Tips can be submitted anonymously. The community is reminded to remain vigilant and report any suspicious activity or vehicles matching the descriptions provided by law enforcement.