NEW YORK CITY -- A massive blaze tore through what is said to be a furniture store in the Bronx Tuesday morning, leaving a dozen people injured.

According to ABC affiliate WPVI, the fire started around 5:30 a.m. on the first floor of a furniture store building.

The building was soon spitting flames from all four floors.

WPVI reports only one of the 12 people hurt faced serious injuries.

The cause of the fire has not been determined.

Video credit WPIX.