Fiery building explosion in Detroit

DETROIT - Authorities have swarmed an industrial neighborhood on Detroit's east side where an explosion was reported at a commercial building.

The situation unfolded just before 9 a.m. Tuesday at National Fleet Services just north of I-94.

CBS Detroit reports that all four walls of the building were completely blown out in the explosion, which also created a large fire.

At least three people have been transported to the hospital, although the severity of their injuries is unknown. One person who was trapped inside the building has since been rescued.

Police, fire, EMS and HAZMAT crews are on the scene. Officials are evaluating yellow bins around the building that apparently hold compressed natural gas. Power lines are also down and laying across puddles of water and snow, further complicating the situation.

Officials on the scene say tensions remain high because another explosion could happen at any moment.

According to their website, National Fleet Services is an authorized compressed natural gas (CNG) modifier for the Ford Motor Company. The company converts vehicles to run on compressed natural gas and liquid propane gas.