Video of the June 14 incident shows the officer didn't respond.
A Chicago police officer is being investigated after video showed him ignoring a woman's pleas for help while a man berated her for wearing a Puerto Rico shirt.
"Hopefully, this officer will actually do something", Irizarry is heard saying when the second officer arrives.
At one point, the man approaches Irizarry and screams, "You're not going to change us".
"The world is not gonna change the United States of America".
Irizarry asks a park police officer to help, saying "I am renting this area and he's harassing me about the shirt that I'm wearing". "You know that", the man says in the video.
The flags of Puerto Rico and the United States fly side-by-side, May 8, 2017, in San Juan, Puerto Rico.
The officer can then be seen talking to Trybus, who gesticulates back and tells him to "shut the f*** up".
Irizarry is seen filing a formal complaint and says that the initial responding officer did "absolutely zero". "Can you please grab him?" to which he turns his head and walks in the opposite direction. Like this guy is just walking up to me.
The Forest Preserves wrote on Twitter on Monday that the investigation of the officer is "ongoing" and that he'd been assigned to desk duty "pending the outcome".
Footage of the incident, which took place last month, resurfaced online in recent days and one Facebook post with the clip had almost 2 million views at time of publication. She then warns him, "You don't come here harassing people". "People have just as much right to be here as you do, and when you're drunk you don't belong here".
"This is America", he says.
Preckwinkle called the video "completely unacceptable" and said she was "troubled" by the officer's response to the "terrible" incident.
Irizarry posted the video on her Facebook account after the June 14 encounter at Caldwell Woods, which is part of the Forest Preserves of Cook County.
"I am appalled, shocked & disturbed by the officer's behavior", Rossello tweeted.
Puerto Rico was hit by a devastating storm, Hurricane Maria, last September.
His angry rant made headlines and was viewed millions of times on social media, catching the attention of Cook County Board President Toni Preckwinkle, who apologized to the victim, and the governor of Puerto Rico, who tweeted, "This is not the America we all believe in".
Puerto Rico Gov. Ricardo Rossello shared his viewpoint on the video via Twitter on Monday: "Today a video surfaced of an undignified event in which a Puerto Rican woman was brutally harassed by a bigot while an officer did not interfere". "I was denied entry into the Capitol complex by U.S. Capitol Police despite being a Congressman with identification, because my daughter was carrying a Puerto Rican flag and the officer doubted that I could possibly be a Member of Congress".