Baltimore firefighters responded to a blaze in a house in the 800 block of N. Bond Street just after 8 a.m. Sunday, a department spokeswoman said.
Firefighters battled flames coming from the third floor of a three-story house, said spokeswoman Blair Skinner. One firefighter sustained non-life threatening injuries, and the fire was under control just after 8:30 a.m.
The cause of the fire remains under investigation, Skinner said.