MOORE, Okla. -- Police are investigating a shooting outside a Moore home in which a bullet narrowly missed hitting an 8-year-old girl while she slept in her bed.

The bullet came through a window, shattered the glass and woke up the girl and her parents. They didn't find the bullet hole until the next morning, reported KOCO-TV in Oklahoma City.

"It was this small hole in the blinds, that stuck out at first," said the girl's stepmother, who asked to be identified only as "Jennifer." "I thought, 'What else could go through that and cause such a big hole?'"

The much larger hole in the window indicated that someone had fired a shot into her 8-year-old daughter's bedroom.

The bullet seemed to have disappeared until Jennifer's stepdaughter noticed a mark on her pillow.

"The front of the pillow had a hole. The back of it didn't," she said. "I dug around and it was deep in there."

The bullet had landed inside the pillow that was just inches away from her stepdaughter.

"It landed between her legs," Jennifer said. "There was a pillow at the bottom of the bed between her legs and it landed in that pillow."

Police said they got a call of shots being fired in that area early in the morning but didn't find anything when they arrived. Officers said they currently have no leads about who may have fired the shots.

Jennifer said she thinks the shot came from an open field behind her home. Police said there's no way to know for sure.

"It was somebody just messing around, doing something for fun, shooting at a target," she said. "The bullet is going to go somewhere, and it could be into a person."