MADISON, Wis. (AP) -- The Wisconsin board that oversees elections says all recall petitions targeting four Republican state senators have been scanned into computers.

The Government Accountability Board says about 89,300 pages of petitions targeting Gov. Scott Walker have also been scanned but about 63,000 pages remain. None of the 140,000 pages of petitions targeting Lt. Gov. Rebecca Kleefisch have been scanned yet.

Board staff and dozens of temporary workers are scanning all the petitions so electronic copies can be provided to the targeted office holders and the public. The petition signatures will also be entered into a database where fake names and duplicates can be found and removed.

The board has no estimate of when it will be done.