SAN JOSE -- A fire rose through the walls and into the attic of a South San Jose townhome Thursday, forcing two people to look elsewhere for housing until repairs are made, the San Jose Fire Department said.

The two-alarm blaze was reported at 1:34 p.m. in a three-unit condominium on Camden Village Circle off Camden Avenue, south of Highway 85. No one was home at the time, though there were contractors working when the fire broke out.

More than 45 firefighters responded to the fire and corralled it within about half an hour. No injuries were reported.

The American Red Cross provided housing assistance to two people displaced by the fire.

Fire officials said the blaze started in the walls of the structure, but a more precise origin point and cause were under investigation Thursday.

Contact Robert Salonga at 408-920-5002. Follow him at Twitter.com/robertsalonga.