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A bystander in Virginia captured the moment a massive explosion rocked fire crews responding to a utility emergency Tuesday night.

Fairfax County Fire and Rescue Department were at the scene in the 3800 block of South George Mason Drive in Bailey's Crossroads around 3 p.m.

In a short video from the scene, smoke can be seen coming out of a building while a firefighter works to open a door.

The moment the firefighter pries the door open, a massive fireball erupts from the building. The blast was so strong that the person filming appears to lose control of their camera.

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Unidentified firefighter pries open door

The unidentified firefighter can be seen attempting to pry the door open. (Bystander provided to Fairfax County Fire and Rescue Department)

The firefighter seen at the door closest to the blast is OK, the department said on social media. 

"Firefighters put their lives on the line everyday to protect the lives and property of Fairfax County," a statement read. 

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Huge fireball in Virginia, firefighter survived

The huge explosion was caught on camera by a bystander and shared with the fire department. (Bystander provided to Fairfax County Fire and Rescue Department)

Firefighter seen opening door second before blast

The firefighter can be seen opening a door seconds before the blast. (Bystander provided to Fairfax County Fire and Rescue Department)

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The fire department is not releasing the name of the firefighter involved.