Arizona police say motorists should be “hyper vigilant” on a Phoenix highway, where a presumed sniper has been shooting at drivers almost daily for the last two weeks.

The alleged shootings have all occurred along an eight-mile stretch of I-10 outside of Phoenix. And all vehicles appear to be fair game: attacks have been reported on sedans, SUVs, a tour bus and an off-duty police officer’s personal vehicle.

So far no serious injuries have been reported, though a 13-year-old sustained a “minor cut to her ear” when a bullet shattered the windshield of the SUV she was traveling in on August 29.

Though authorities say they haven’t determined whether all nine vehicles were hit by gunfire or some other projectile, they do believe at least some of the incidents—including two shootings which were reported Tuesday—are part of a pattern of “domestic terrorism.”

“Both vehicles were hit on the driver side, passenger window by a projectile,” Arizona Department of Public Safety Director Frank Milstead said. “I would call that related.”

In the meantime, the FBI and the ATF have both joined the investigation and are offering a $20,000 reward for information.

Image via NBC. Contact the author at