There was a fire late Thursday night at the Days Inn on Ethan Allen Highway in Ridgefield.  The West Redding Fire Department along with Redding Fire & EMS responded to the automatic alarm shortly before 11pm.  While en route, dispatch notified firefighters that the sprinkler system at the property was activated.  The fire was contained to a single hotel room.  Georgetown and Ridgefield fire departments provided mutual aid.  There were no injuries reported.  The West Redding fire marshals office is conducting the investigation and the cause is still undetermined at this time.