Arizona state troopers are investigating another report of shots fired on an Arizona freeway.
Department of Public Safety officials say a man called in Friday evening to report possible shots fired at him on Loop 101 and 75th Avenue.
Troopers say the man was not injured.
There have been 11 confirmed shootings involving vehicles along Interstate 10 and Interstate 17 since August 29. There has not been a confirmed shooting, however, since September 10, marking eight days without an incident.
State troopers have responded to several reports of broken windshields since them, but most have been determined to be caused by road debris and not connected to the larger freeway investigation.
DPS has placed 16 digital billboards advertising the case and the $50,000 reward along the freeways and passed out thousands of fliers to nearby neighborhoods hoping to reach those who may not be following media coverage.
Arizona Department of Transportation has also placed the DPS Tip Line phone number on all of its electronic signs.
Friday evening's incident is still under investigation.