ABC News

Arizona Gov. Jan Brewer is MIA. Sort of.

The governor, who is best known for championing the state's controversial immigration law, is currently taking a week-long work trip out-of-state, but her office has refused to disclose where she is going.

The mysterious trip, which was first reported by The Associated Press, leaves Secretary of State Ken Bennett as the acting governor, as outlined by the state's constitution. Bennett spokesman Matt Roberts tells ABC News that the secretary's office was notified on Friday that the governor would be gone from Sunday through Saturday, but they were not told where the governor was going.

There has been one Brewer sighting so far this week in the Washington, D.C., area. The AP reports that Brewer visited a wounded soldier from Arizona at Walter Reed Hospital in Bethesda, Md., on Monday.

Her whereabouts on Sunday and her plans for the rest of the week, however, are a mystery.

Brewer missed the certification Monday of Arizona's 2012 election results. Bennett, who in his job as secretary of state is already responsible for overseeing elections, oversaw the official canvas.