After a fruitless day of searching Saturday, numerous patrol and search and rescue personnel continued the hunt Sunday morning, Hawke said. She said that at any given time, 75 to 100 officers were taking part, including police, FBI agents and deputy U.S. marshals.
Teams combed an area of Tucson on Saturday around East Broadway Boulevard and Craycroft Road into the evening using street patrols, canines and a helicopter. At one point late Saturday, communications operator Patrick Olea said the area encompassed "pretty much the entire east side."
Also involved are Department of Corrections bloodhounds, search and rescue experts and a Pima County rapid response team.
Friends of the family fanned out to distribute fliers with a photo of Isabel, KVOA-TV in Tucson reported. The girl is described as just under 4-feet-tall and weighing 44 pounds, with brown hair and hazel eyes.