A bullet pierced the side of a tractor-trailer on an Arizona freeway Thursday, and police said they were treating it as the 11th attack in a string of shootings over the past two weeks that have terrorized drivers in the Phoenix area, NBC News reported.
The governor pleaded for the public's help earlier in the day and authorities said they could be dealing with more than one gunman.
In less than two weeks, 10 other shootings have been reported on or near Interstate 10. Seven have been bullet strikes, and the others were unspecified projectiles, which could mean BBs or pellets.
Police say drivers have been lucky so far: The only injury was a 13-year-old girl who was cut by flying glass when the window of her car was shattered by a bullet.
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