A four-alarm fire broke out at the Mandarin Hotel construction site this morning, and it was so strong that it shut down Boylston Street.

The fire's origins have been located in "some cabinets on the fourth floor of the 15-story hotel," WBZ reports. The cabinets were part of a fitness room.

WBZ has some scary footage of the smoke going up in the sky. Only one construction work sustained "minor burns." That's a true stroke of luck. According to the Globe, "several hundred construction workers may have been on the scene at the time."

The Mandarin Oriental is the same spot that planned to offer a "new benchmark for luxury living" for a ridiculous $12,500 a month. No word on any delays of the opening of the site.

Whatever needs to be done to fix it, it is going to be costly. WCVB estimated the window damage alone at $30,000.

Did you happen to catch any photos of the fire? Drop us a line in the comments or post the image to Flickr and tag it with "Bostonist."