WATCH: White nationalists flee counterprotesters filming them before melee breaks out

In video posted to Twitter, members of the white nationalist hate group Patriot Front in Philadelphia are seen backing up and then running as they are being filmed loading into vans to leave the area.

A video posted online showed members of the group, wearing masks and carrying shields and American flags hung upside down. Later they were seen loading into Penske cargo trucks to depart.

A group of the white extremists can be seen forming a line and backing up, shields held high, as they are confronted by counterprotesters filming them before suddenly turning and running behind the vans, where a fistfight breaks out after they are followed.

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In the video, one counterprotester can be heard yelling "F*ck them up."

Watch below:

(Correction: A previous version of this story incorrectly claimed the video was from the National Mall in Washington, D.C. The events depicted took place in Philadelphia over the summer.)