Kansas City police cancelled an Amber Alert but they’re still searching for a ten-month old girl who apparently was snatched from her crib Monday night.

Lisa Irwin’s father discovered her missing when he returned home from work Tuesday morning. More than 100 officers spent much of the day searching near the Irwin home in the northern part of Kansas City.

Investigators say the baby may have been taken by an intruder who entered through a window.