Police in Blair County are investigating two incidents of someone shooting at cars, along Poplar Run Road in Juniata Township.  
 
The first happened on November 30 after 9 p.m., when police say someone shot a low-velocity projectile at a vehicle that struck the rear window and cracked it.
 
The second incident happened on December 3, also after 9 p.m., when police say a projectile hit the driver’s side front window.
 
Anyone with information is asked to call State Police in Hollidaysburg.