MINNEAPOLIS (WCCO) — A demonstration gone wrong due to a chemical explosion put Patrick Henry High School under lock down for a couple of hours Monday.

Minneapolis firefighters, including hazardous material crews, were called around 9:30 a.m. to the high school located at 4320 Newton Ave. N.

Upon arrival, they found a classroom with damage to a table and chairs but no fire. Officials say the chemical explosion occurred while a teacher was preparing for demonstration for students.

The school was immediately placed in lock down and evacuated once fire crews arrived on scene.

The Minneapolis Bomb Squad was also requested to the scene as a precaution.

Crews cleared the scene around 11:15 a.m.

The male teacher involved in the explosion was transported to North Memorial Medical Center for minor burns and cuts. His condition was not known.

There were no other injuries in the incident.

Comments (11)
  1. phew says:

    It sure is good to hear that he is ok, along with the 3 students in his class.

  2. Where is Walter White? says:

    Pretty sure old Walt would not have had this problem

  3. Kevin says:

    Better be careful our 37th National Education ranking may be changed now!

  4. Guy says:

    LOCKDOWN?? Explosion, possible fire & hazmat & they do LOCKDOWN??
    The proper procedure should have been EVACUATION if anything.
    Get the kids AWAY from the danger; not try to keep them exposed to it.

    1. mp says:

      Agreed….seems kinda backwards to me….

      1. Mark says:

        I’m guessing loud boom now means that standard procedure is to automatically lock down, IE all teachers lock students into the rooms. Only the one teacher and students in his room knew it wasn’t an attack or a bombing. I’m sure no one went to the room to investigate until the bomb squad and fire dept arrived.

  5. Samo Samo says:

    Bomb Making 101
    Start simple with a Mcgiver Bomb and work your way up.

  6. Weed Can Save Us says:

    Maybe they were cooking meth?

  7. rasthmus says:

    Someone lit a gasser.

  8. tom says:

    Budding young scientist at work

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