(CNN) -- A baby who had been missing for days was found alive late Wednesday in a box underneath the bed of the child's baby sitter, Florida authorities said early Thursday.

The sheriff of Washington County in rural northwest Florida carried the 7-month-old girl into the early morning news conference.

"This is Shannon Lee Dedrick. We found her safe; we do not usually get the happy endings that happened here today," Sheriff Bobby Haddock said.

"If you want to see a bunch of grown men cry, tonight we rushed her to the hospital and we [were] all calling home to our wives to let them know we found this baby safe."

The sitter, Susan Baker, her husband, James Baker, and Crystina Lynn Mercer have been detained but have not been charged. Haddock has scheduled another news conference at noon Eastern time.

The incident happened near Chipley in Florida's panhandle near the Alabama state line.

The baby's mother reported her missing Saturday morning. Authorities believe she went missing between 3 and 11 a.m. from her parents' bedroom in their Chipley home, CNN affiliate WMBB-TV reported.