BOSTON TOWNSHIP -- Cuyahoga Valley National Park Chief Ranger Chris Ryan confirmed during a press conferenceTuesday afternoon that hikersdiscovereda human jawbone in the Cuyahoga Valley National Park Monday night.

Ryansaid rangers and the FBI's evidence response team areat the park Tuesday morning and confirmed that"bones and some items of clothing have been found...spread out in an area..."

Boston Township is just south of Peninsula. Ryan has worked as a ranger for decades, but says nothing prepared him for the news that this quiet park is now the scene of what may have been a homicide.

Ryan saidthe hikers found the remains just about 5 p.m. Monday and contacted park officials. Ryan added that part of a skull was also discovered when park personnel arrived in the area.

The Summit County Medical Examiner's Office was at the park Tuesday, as well as the evidence-gathering team from the FBI, along withthe National Park Police.

The jawbone was discovered not far from the Valley Trail trailhead -- where the trail begins -- near the Towpath Trail.

Ryansaid Tuesday afternoon that " this time, we don't know if (the bones) are from one or two persons..."

He addedthat rangers hike the trails regularly and saidit " too early to determine if it is a homicide...but it is classified as a death investigation..."

The Cuyahoga Valley National Park is 33,000 acres, Ryan said, and the National Park Service area is about 18,000 acres.

WKYC's Erin Kennedy will have more on this story tonight starting at 6.