Crews contained a three-alarm fire at a public storage facility in San Jose overnight Thursday and were still trying to determine its cause.
Police on Thursday said they have a person of interest in custody.
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The fire was reported shortly after 6 p.m. at Public Storage in the area of Blossom Hill and Cottle roads in South San Jose.
People in the area said they heard explosions at the site of the fire. The explosions were seen miles away and videos of it were posted on social media.
Some San Jose residents described the explosions they heard on Wednesday.
“My windshield was locked. But I feel the sound. A blast sound came out. I was scared something’s wrong going on,” said Babu Prasad of San Jose.
“I heard some explosion sound. My dad thought it was an earthquake first,” said San Jose resident Jaelyn Ha.
Some people said the blast appeared to be fireworks. But San Jose fire officials said Wednesday night that it was too soon to know what caused the explosions.
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The fire caused road closures and major traffic delays in the area.
Firefighters said everyone at the facility was accounted for. No injuries were reported.
The cause of the fire is still under investigation.