A four-alarm fire at a tire warehouse injured two people and damaged six businesses in Antioch Tuesday afternoon.
One person is in custody as investigators look into the possibility of arson.
Two people sustained burn injuries, fire Capt. Robert Marshall said.
The fire was reported around 4 p.m. at Blue Star Tires at 2665 Pittsburg-Antioch Highway, fire Capt. Robert Marshall said.
Marshall said around 5:15 p.m. that firefighters were battling the blaze defensively, from the outside.
"We're not putting any firefighters into the building because it's too dangerous," he said.
The fire was under control around 6:15 p.m., Marshall said.
Bay City News contributed to this report.