OLD TOWN, Maine — Authorities were in the woods near the Stillwater River in Old Town on Tuesday morning at the site where the body of Nichole Cable is believed to have been found.

Maine State Police and other law enforcement personnel were gathered near the intersection of Routes 43 and 16 and were seen putting up yellow crime scene tape about 9:30 a.m. A state police spokesman confirmed the activity at the scene was related to the discovery of the body Monday night. A black minivan was seen entering the barricaded area and leaving minutes later. Authorities believe but have not confirmed that the body found Monday is that of Cable, who disappeared from her Glenburn home last week.

“They’re still processing the scene,” Mark Belserene, a spokesman for the state medical examiner’s office, said Tuesday morning. “The plan is to do the autopsy today, if possible.”

In a news release issued late Monday, Stephen McCausland, spokesman for the Department of Public Safety, said a body was found by the Maine Warden Service and that the state medical examiner’s office would make a positive identification on Tuesday.

The remains were found about 9:30 p.m. and the site was secured for the night. The recovery of the remains began at daylight Tuesday.

The parents of the girl were told of the development by members of the Penobscot County Sheriff’s Department and Maine State Police.

Jason Wiley, who is married to Cable’s mother, Kristine, answered his door on Tuesday morning and said an investigator was going to arrive shortly to give them an update. He declined to comment until after speaking with the investigator. Shortly before 11 a.m., two unmarked state police vehicles arrived at the house.

Cable was a student at Old Town High School and grief counseling has been set up for her fellow students, a school secretary said Tuesday morning.

Additional information will be released at a news conference at  11:30 a.m. Tuesday at the Sheriff’s Department in Bangor, according to McCausland.

Police said earlier Monday they were following leads developed from Sunday’s massive search for the 15-year-old girl, who was last seen on Mother’s Day. More than 500 people took part in Sunday’s search in Glenburn, Hudson and West Old Town, including law enforcement officials and volunteers.

In addition to the ground searches coordinated by the Maine Warden Service, police conducted two informational roadblocks between 8 p.m. Sunday and 1 a.m. Monday in the areas of Route 221 in Hudson and Route 43 in West Old Town, Chief Deputy Troy Morton of the Penobscot County Sheriff’s Office said in an update Monday evening.

More than 100 motorists passed through the road checks, providing more than 25 new pieces of information for investigators to pursue, he said.

Morton said that on Monday a Maine Forest Service helicopter was brought in to search the Hudson and Old Town areas and that K-9 teams from the Federal Bureau of Investigation and the Maine Warden Service conducted several more ground searches.

“We’re doing follow-up investigations,” Morton said Monday shortly after leaving the command center set up at the historic Penobscot County courthouse. “Different officers, with different specialities, are being sent out to do different [assignments].”

Nichole Cable was last seen at her home on Spruce Lane on the evening of May 12, and her parents think she was taken by someone using a false Facebook profile, according to the family’s Facebook page, Bring Nichole Cable Home.

Morton, who estimates there are between 40 and 70 officers working on the investigation, said several Facebook rumors have surfaced about the case but said he didn’t want to comment on any of them. He said officers working on the case are focusing on legitimate leads.

“Our people are working really hard,” Morton said.

There are seven residences on Spruce Lane in Glenburn, which is a private road.

A poster bearing a picture of Nichole’s face and the word “Missing” marks the roadway’s entrance. It is hung on plywood painted white. Words of love and calls to come home safe, left in black magic marker by friends, loved ones and strangers, stand out against the light paint.

The man who lives next door to Cable and her parents said Monday he has three sons living at his house and is concerned for their safety.

“I won’t let them play outside,” he said, pointing to his yard, which abuts the Wileys’ property.

The public is asked to call the Penobscot County Sheriff’s Department at 947-4585 if they have any information about the case.

Watch bangordailynews.com for updates.