More than 100 members of a task force comprised of local and federal law enforcement agencies are working to find a 5-year-old Michigan girl whose disappearance three days ago is being investigated as an abduction.

Monroe County Sheriff Tilman Crutchfield said during a news conference Wednesday morning persons of interest were identified, but the investigation and the search are ongoing.

No other information about the persons of interest was immediately available.

He said that his office as well as the FBI and others are staffed 24 hours a day trying to locate Nevaeh Buchanan.

Nevaeh last was seen Sunday evening in the parking lot of an apartment complex in Monroe, 40 miles south of Detroit. All 180 units in the apartment have been searched.

She is 3-foot-8 and 45 pounds, with brown hair and brown eyes.

The Associated Press contributed to this report.