SPRING, Texas (CBSDFW.COM/AP)Authorities in Texas say a woman who left a toddler alone on a stranger’s doorstep could face charges of felony child endangerment.

Montgomery County Sheriff’s Lt. Scott Spencer says the 2-year-old boy’s mother had asked a friend to drop off the child with the boy’s father in Spring because the mother was in the hospital. Spencer says the friend left the boy on the front step Wednesday night without waiting for anyone to open the door.

The homeowner made a 911 call, telling the dispatcher she had heard a knock on her door, and when she answered it found a two-year-old child standing there alone.

Spencer says the boy’s father lives next door. The boy’s father told authorities he didn’t realize what had happened until a news crew showed him footage from the neighbor’s video doorbell Thursday morning.

Spencer says authorities have identified the woman in the video and that an investigation is underway, though she hasn’t been charged.

(© Copyright 2018 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)