Declining ratings and a sense that the show had "run its course" have led Lifetime to cancel its series "The Division."

The show, which starred Bonnie Bedelia and Nancy McKeon as San Francisco cops, averaged about 2 million viewers in its fourth season, which ended in June, down about 500,000 viewers a week from its 2003 season. Creative factors played a role in the decision to cancel the show as well.

"[W]e felt that the show had, as all television programs eventually do, run its course, and it was time to offer our viewers another option," a network spokesman tells The Hollywood Reporter.

Lifetime is working on several development projects, the spokesman says, but hasn't settled on one to plug into "The Division's" spot in the lineup.

While "The Division" is done, Lifetime has decided to extend the life of another of its dramas, "Missing." The network has ordered five more episodes of the show about an FBI agent (Vivica A. Fox) who teams with a psychic (Caterina Scorsone) on missing-persons cases, bringing the total for this season to 18.

"Missing," which is in its second season, draws about 2.2 million viewers per week.