FRANKLIN, Tenn. (WKRN) — A cargo container used for storage exploded at a Franklin middle school Tuesday morning.

The explosion happened at Poplar Grove Middle School on Del Rio Pike around 7:15 a.m.

  • Poplar Grove school
  • Poplar Grove school
  • Poplar Grove school
  • Poplar Grove school
  • Poplar Grove school
  • Poplar Grove school

Franklin police reported no one was injured when the temporary storage container exploded in an on-campus construction area and the school building was not damaged.

The fire from the explosion was extinguished and students on campus who were evacuated have returned to their classes, according to Franklin police. Students were temporarily held on the elementary side of the building until the fire department gave the “all clear” and classes are on regular schedule.

The blast was heard by multiple people in surrounding neighborhoods.

The Franklin Special School District released a statement, which reads;

This morning there was an explosion in a container within the construction storage area on the Poplar Grove Middle campus. A resulting fire that was limited to the restricted area was extinguished within 15 minutes. There were no injuries and students are back in class. We appreciate the very quick response of the Franklin Fire Department and other emergency responders. Emergency personnel may remain on site throughout the morning to finish investigating and cleaning the affected area.

Franklin Special School District

The Franklin Fire Department reported the explosion appears to have been caused by a leaking propane tank and space heater, according to Franklin Fire Marshal Andy King.

King said the container was being used to store construction tools and serve as a workspace for construction workers, according to a release. He said it appeared there was a propane leak in the container overnight, which filled it with flammable gas.

According to the Franklin Fire Department, when construction workers arrived at the site Tuesday morning, they started an electric space heater, which appeared to have ignited the gas, causing the substantial explosion.

The investigation is ongoing.

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This is a developing story. WKRN News 2 will continue to update this article as new information becomes available.