Shia Labeouf Arrested During Live-Streamed Anti-Trump Protest

Recently, Shia Lebeouf boldly shut down an alleged white supremacist at his live-streamed "He Will Not Divide Us" protest in New York.

However, another protester altercation at the anti-Trump rally has seemingly led to the actor's arrest.

TMZ has the scoop:

NYPD officers hauled Shia LaBeouf away in handcuffs from his marathon protest site in NYC ... after he got into it with another protester.

The arrest happened right in the middle of Shia's "He will not divide us" live stream ... which has been going on since President Trump's inauguration. Cops tell us a guy walked in front of the mounted camera and said something -- possibly regarding Trump -- but whatever it was, Shia got pissed.

Shia grabbed for the guy's scarf, and allegedly scratched him in the process. As TMZ first reported ... NYPD has been posted up at the protest site since Monday -- so officers quickly moved in and busted Shia. 

In Shia's absence, the protest continues.