A group of hikers apparently became freaked out after encountering a tree burning from the inside in Ohio.

The frightening sight shocked two hikers who filmed video of the tree and shared it to YouTube last week.

The incident happened in Defiance, Ohio, which is located about 60 miles outside of Toledo.

In the beginning of the 30-second video, one of the hikers can be heard saying 'What the f***,' as the person filming aims the camera at the top of the tree, which is engulfed in flames from the inside.

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Burning from the inside: A group of hikers apparently became freaked out after encountering a tree burning from the inside in Ohio last week

The frightening sight shocked two hikers who filmed video of the tree and shared it to YouTube

The video shows bright orange colored flames raging from top to bottom inside of the tree.

There does not appear to be any fire damage on the outside of the tree or a sign of a fire burning anywhere nearby.

'How is this even possible?' one of the men asked in shock.

'It's starting to get up and around.'

The hiker then urges his friend that they 'better get out of here,' as the cameraman slips over twice.

Since being posted December 21, the viral video has been viewed more than 223,400 times.

It's unclear how the tree caught fire in that manner, but a few people who have left a comment about the video that the hikers shared to YouTube have labeled it as the 'Devil Tree.'

One person who watched the video wrote 'HAIL SATAN!' in the comments.

Tree fires similar to the ones the hikers filmed can sometimes be caused by lighting bolts.

In addition, wildfires can also spread by roots burning underground and then up into the insides of large trees.