A man was detained after fighting someone outside U.S. Bank Arena in Cincinnati during President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE’s rally Thursday.

Video obtained by the Cincinnati Enquirer showed a man getting out of his truck and swinging at another man over a dispute and the two immediately getting separated and detained by multiple police officers.

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Scott Fantozzi witnessed the fight and recorded video of it, posting it to Facebook around 7 p.m. He said the fight appeared to break out after the two men argued about politics, he told the news outlet.

It is not immediately clear from the video that was posted what led to the fight.

The crowd reportedly began chanting “lock him up” as the man was taken away by police.

Trump’s rally Thursday in Cincinnati was interrupted multiple times by protestors inside the arena, one of whom held a sign reading, “Immigrants built America.”