An American YouTuber has found the remains of two teenagers who disappeared in Tennessee 21 years ago.
Jeremy Sides regularly goes scuba-diving in rivers and lakes in a bid to solve missing person cases.
In his latest discovery, he found a car that matched the one driven by Erin Foster, 18, and Jeremy Bechtel, 17, who disappeared in April 2000.
The teens vanished after leaving Foster's home and their whereabouts have been unknown since.
But police in Sparta, White County, confirmed the YouTuber's discovery matched the car driven by the teens.
Mr Sides shared a video on his YouTube channel 'Exploring with Nug' and said he was "lost for words" when he found the car.
He said: "When I saw two teens went missing and vanished in a car, that really stood out to me.
"When I looked at the town where they were last seen, I saw that a big river ran through it. That just told me to go."
The YouTuber's first search was unsuccessful, according to reports.
But it all changed after one of the man's videos was brought to the attention of White County Sheriff Steve Page, who then contacted him to suggest looking at a different location along the Calfkiller River.
In a video published at the end of November, Mr Sides described the moment he found a car underwater.
He said: "Whoa, oh OK, that's 100% a car in front of my face. I've been looking all day, and I finally found a car."
The police said officers rushed to the scene as soon as Mr Sides called them, and following an investigation, they confirmed the vehicle matched the one driven by the missing teenagers.
Mr Sides said the discovery was "overwhelming" and, even though he was glad that it could bring closure to the teens' families, he was sad as it meant they had lost their lives.
He added: "They have been underwater for 21 years and no one can come and find them is a very sad situation. We observed that all the windows of the vehicle were open.
"Probably the young person driving the vehicle, he lost control of the steering wheel and caused the car to fall into the river."
Authorities said the remains located in the car have yet to be officially identified and information will be released in due course.
Details of how the car ended up in the river are unclear, but officers think the pair lost control of the car and went into the water as there was no guard rail along the road in 2000.
Major John Meadows, the lead investigator in the case, said the teens were his classmates, adding it was "humbling" to be able to help their families find an answer to their mysterious disappearance.
Sheriff Page told The Washington Post : "We have gone in wells, dug up areas, we have used ground-penetrating equipment looking for bodies.
"[But] it was right under our noses the whole time. … It’s heart-wrenching to know it was that simple, and it was made that hard because of all the rumours and horror stories through the years."
The pair's disappearance sparked several theories around Tennessee, with some people suggesting they were murdered, while others claimed they had run away to another state.
Following the discovery, Sheriff page added: "I made a promise to the [Foster] family that as long as I was Sheriff I’d be looking for these two kids. I did. I have."
Mr Betchel's father Ronnie said the discovery of the car made him feel like he had lost his son "all over again", adding: "It just shattered my heart again.
"We always kind of thought through the years that something happened, but I just didn’t know what."
Mr Sides said: "I was very humbled that I could just help out.
"I would like to think the police did what they could. But this one just slipped through the cracks."
