Five people were arrested after a house fire in Elk Grove Saturday morning led investigators to the discovery of three residential marijuana growing operations. Elk Grove police say they recovered 550 marijuana plants and about six pounds of packaged marijuana, as well as 14-hundred-dollars in cash, and a loaded, sawed-off shotgun.

Elk Grove Police Spokesman Christopher Trim says "This is an ongoing investigation, There may be additional homes involved, or not. Traditionally, one house leads us to another and another."