A high school student injured himself and other classmates after detonating a homemade explosive device inside a classroom at a school in west-central Michigan, according to authorities.
“All Newaygo County schools went into lockdown according to county emergency operations plan until information was obtained that there were no further threats to students,” state police confirmed.
Authorities said a 16-year-old student, who also allegedly detonated the explosive device, was taken to the hospital for moderate to severe injuries.
Four additional students were also taken to the hospital by their parents for minor injuries, according to state police.
The high school’s administration dialed 911 after the explosion to urge emergency assistance at the school, and all students were immediately evacuated to a “bus garage.”
Police said a preliminary investigation determined that the 16-year-old student “accidentally detonated” the homemade explosive device he brought to the school and had no ill intentions.
Troopers also executed a search warrant on Monday at a Newaygo County residence as part of the investigation.
Additional details around the location of the residence or the connection to Monday morning’s accidental explosion were not provided.