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      Manassas hydrogen tank explodes

      A hyrdrogen tank exploded in Manasses. (WJLA)

      A building in Prince William County was evacuated Monday after a hydrogen tank exploded.

      Authorities say they received reports of an explosion at about 11:30 a.m. The tank reportedly exploded inside a Manassas building in the 9400 block of Innovation Drive.

      One person reportedly received minor injuries.

      The accident occurred at a company called Utron Inc., at a research park near the Manassas campus of George Mason University. Utron specializes in high-velocity projectile launches, according to the company's website.

      The Associated Press contributed to this story.