Firefighters responded to a Center City block for the second time in as many days early Wednesday after a basement caught fire.
The fire broke out around 3:30 a.m. in the basement of 2002 Ludlow Street, which is just off 20th Street.
The four-story building houses various businesses, include a technology company and a young Jewish professionals social group.
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The building is located just around the corner from where an underground explosion happened along 20th Street Tuesday morning. The Tuesday blast blew out the storefront of a dry cleaners and sent smoke and dust through the street.
"We're lucky we are still alive," said Haviv David, owner of Mama's Vegetarian, a restaurant near the blast zone.
PECO continues to investigate the cause of the explosion. It remains unclear whether Wednesday's fire may be related to the blast.