CALDWELL, Idaho (AP) — Police are investigating a grisly discovery found in the yard of a Caldwell family.

Jennifer Keller was leaving for work with her 9-year-old daughter the morning of Nov. 9 when she found a frozen pig head stuck on top of a pole next to a tree in her yard.

Keller says the sight terrified her daughter.

Caldwell Police Sgt. Jim Watson said evidence suggests the head had been there just a few hours. Watson says if the person who left the head is caught, he could be charged with misdemeanor disturbing the peace.

Keller says her yard has been a target for vandalism and theft in the past. She says she's worried about the incident.