Published: Feb 22, 2011 7:04 PM EST
Updated: Feb 22, 2011 4:06 PM EST

TALLAHASSEE- Gov. Rick Scott's pick to head the Florida Agency for Persons with Disabilities has resigned amid questions about sexual activities at a group home overseen by the agency.

Scott on Tuesday also said he's ordered an investigation into overspending by the agency.

Carl Littlefield resigned Monday night. He was scheduled to appear Tuesday before a Senate committee looking into allegations of sex among residents of a group home in the Hillsborough County town of Seffner.

Littlefield, a former state legislator, was administrator for an area that included the group home before Scott promoted him to agency head on Feb. 4.

(Copyright 2011 by The Associated Press. All Rights Reserved.)