FBI agents have joined the search for a 10-year-old Grays Harbor County girl missing since Friday night.

Lindsey Baum was last seen walking home from a friend's house about six blocks from her own home in the small town of McCleary.

Grays Harbor Undersheriff Rick Scott says law enforcement officers were canvassing the city Sunday. He says search and rescue volunteers and others combed the area Saturday where the girl was last seen but "didn't yield anything."

Scott says there's no evidence of foul play, but his agency is "beginning to investigate with that possibility in mind."

The girl's mother reported her missing at Friday night.

"I just need my daughter home," Melissa Baum, the girl's mother told The Aberdeen Daily World. She said she's afraid someone has taken her daughter and away from McCleary, a town of about 1,500.

McCleary Police Chief George Crumb told the newspaper that while his department hoped she ran off, "she's been gone far too long."

"This is a small town. These things don't happen. And yet here they are," Melissa McCann, a family friend told KOMO-TV. "She comes from her friend's [house] a lot, so it doesn't make sense that she didn't show up at home. We're just baffled."

Click here for a video report from Q13FOX.com.