Fox News reports the Milwaukee County Sheriff’s Office has opened an investigation after a gruesome discovery was made when a resident found a human leg inside a community park.

Officials said the leg was discovered at Warnimont Park in or near the water along Lake Michigan east of the golf course by the pump house.

James Burnett, acting Chief of Staff with the Milwaukee County Sheriff’s Office, said authorities are investigating the severed leg as a homicide. He said a person of interest was in custody.

The park is located in Cudahy, Wisconsin, a small suburb about eight miles southeast of downtown Milwaukee.

Burnett said that there is very limited information at this point to share as to not disrupt the investigation, but he could confirm the leg was human.

Authorities did not disclose the process of how they will identify who the leg belongs to or where it came from.