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WARNING: This video contains graphic images that may be disturbing to some

A brute standing outside a nightclub cold-cocks another dude, knocking him unconscious.

Two men get into what looks like a heated discussion—but it is only a discussion—when this burly thug, standing off to the side, suddenly and without warning, hauls off and punches the smaller guy right in the head.

The guy immediately falls to the ground, knocked out cold.

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And as if the punch weren’t enough, the brute walks over and stomps on the unconscious man.

The dude originally arguing with the guy has to pull the bully off and push him away.

According to The Sun, the victim suffered no serious injuries and police are searching for the assailant or any witnesses.