An illegal immigrant from Mexico was arrested after he allegedly opened fire at Border Patrol agents during a weekend raid in Chicago — which also saw protesters lobbing bricks at the feds.

The man, who was not identified, allegedly drove up alongside agents during an immigration raid in Chicago’s Little Village neighborhood and fired a few rounds before speeding off in a Jeep.

At the same time, a swarm of protesters was trying to physically block authorities, with some chucking bricks and a bucket of paint at their vehicles .

No injuries were reported as cops pivoted to track down the gunman.

The Department of Homeland Security announced that it had taken the “criminal illegal alien from Mexico” into custody on Monday, and revealed he had prior convictions for aggravated unlawful us

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