The blast, which authorities say was caused by natural gas explosion, injured two school district employees performing maintenance in the room.
Both employees have been rushed to the hospital for serious injuries. Balitang America is still trying to determine if any of them are Filipino.
Authorities said there were no students inside the building at the time, and no students were injured. The photo lab is in a building separate from others on campus.
A few Pinoy students said they did not hear an explosion, but they did smell gas.
"The fire alarm went off. They said there was a gas leak so we just left the classroom. Nobody was really scared," said student Nick Patricio.
Two hours after the explosion, authorities said the dangers have been isolated and mitigated and classes at Vallejo High resumed. Students were given the option to go back to class or to go home.
The cause of the blast is still under investigation.
For now, Vallejo High officials are blaming the incident on the Bay Area earthquake in August, saying the school district employees turned the gas on after repairing damage from the quake which resulted in the blast.
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source: www.abs-cbnnews.com
