Fire crews shut down Paradiso Street in Norwalk after a house set fire this morning.

Six crews responded to the multi-unit housing complex for reports of a fire on the second and third floors just before 9 a.m.

Fire crews say they were initially led to the wrong address due to a language barrier with the caller. Moments later, however, they located the housing complex.

Heavy smoke could be seen engulfing the floors. The fire was brought under control within 20 minutes, News 12 is told.

"When we originally arrived on scene it showed signs of a fire in a confined area," said Deputy Chief of Norwalk Fire Department, Albe Bassett. "So smoke was not aggressive, no fire showing on arrival."

First responders say the fire started in a confined space in a second-floor apartment and spread to the third. No one was injured.

Bassett says that there are six people residing in the home who will likely be temporarily displaced. The fire department is working with the Red Cross to relocate them.

The cause of the fire is still under investigation.