Arson investigators are searching for what caused a townhouse garage to catch fire in southwest Houston.

Houston firefighters were dispatched to the townhouse on Regency Square Court and Regency Square Boulevard Tuesday around 1 a.m.

When units arrived they found smoke coming from the garage of the home.

Firefighters say they made a fast attack and were able to put the blaze out quickly.

The couple inside made it out of the home safely with their two dogs.

According to HFD, five other townhouses in the building has to be  evacuated.

The homes had minor smoke that crews cleared with fans.

Arson investigators are looking into the cause of the fire.