TUCSON (KGUN9-TV) - Southwest Gas is investigating an odor of natural gas on the northwest side.
Norhtwest Fire District assisted the gas company on Wednesday in responding to calls of the odor in the general area of River to Orange Grove and La Canada to Camino de la Tierra.
Northwest Fire Capt. Adam Goldberg said crews have yet to find the source of the smell.
Residents are urged to call 911 if they smell it, said Goldberg.
Stay with us for updates.