9-Alarm Fire Breaks Out In Boston's Back Bay

Firefighters are battling a huge, nine-alarm fire in Boston's Back Bay neighborhood.

The building on fire is a four-story brownstone, according to the Boston Fire Department. The fire reportedly started in the basement.

At least two firefighters have been injured, according to The Boston Globe.

Strong winds are aggravating the flames.

It's so far unclear what started the fire and how many people were in the building. A witness told WCVB in Boston that he saw residents fleeing the building using the fire escapes.

Check out some of the photos:

Here's a map that shows where the fire is: