Federal prosecutors said a Chicago man was arrested and charged Thursday after he allegedly assaulted two police officers during an unruly anti-Israel protest outside D.C’s Union Station this summer.

Authorities said Zachary Kam, 24, was arrested in Chicago on charges of assaulting the U.S. Park Police officers as they tried to gain control of the July 24 demonstration, where protesters tagged statues with graffiti and pulled and burned down flags that had been flying near the train station.

Mr. Kam is already facing charges of assaulting police officers in local D.C. Superior Court.

Federal court documents said Mr. Kam grabbed an officer by his vest and dragged him several feet while the officer was handcuffing a suspect who tore down a flag.

Mr. Kam then ran into the crowd to escape, according to the filing, but remerged moments later to throw another officer to the ground. The suspect again fled back into the crowd.

Prosecutors said he was arrested that evening when officers identified Mr. Kam by his distinctive camouflage vest and forearm tattoo.

The protest took place while Israeli Prime Minister Benjamin Netanyahu visited the nation’s capital to address Congress about his country’s ongoing war with the terrorist group Hamas.

• Matt Delaney can be reached at mdelaney@washingtontimes.com.