'Random' interstate shootings injure two

• Story Highlights
• Police looking for shooter or shooters who opened fire on vehicles on I-64
  
• Bullets hit 2 cars, a van, a tractor-trailer, and a parked DOT vehicle
  
• Two injured released from hospital; unknown if they were hit by bullets or glass
  
• 20-mile stretch of interstate closed early Thursday, but reopened later
  
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