Donald Trump had no other recourse but to cancel one of his campaign rallies that was supposed to take place at the University of Illinois in Chicago on Friday.

After coordinating with the local police authorities, the area was deemed unsafe for the event to push through due to a clash between protesters and supporters.

According to interim Chicago Police Superintendent John Escalante, five people were already taken into custody, while two of his men were injured. "One [of the officers] was struck on the head by a bottle... and required several stitches," Escalante said.

The news comes on the heels of another report of violent altercations at Trump's campaign rally at the Peabody Opera House in St. Louis, Missouri, which had more than 30 people arrested.

The Statement From Trump

The GOP frontrunner's camp has already issued a statement with regard to the postponement of the Chicago campaign rally on its official website.

"Mr. Trump just arrived in Chicago and after meeting with law enforcement has determined that for the safety of all of the tens of thousands of people that have gathered in and around the arena, tonight's rally will be postponed to another date. Thank you very much for your attendance and please go in peace," the statement reads.

Not The First Time

Violent altercations among protesters and supporters at Trump rallies have become more of a trend. And, some critics are even pointing their fingers to the GOP frontrunner as the one who instigates the fracases with his behavior and remarks during these events.

Some of the related incidents that made headlines recently include that of the physical assault by a 78-year-old white man named John McGraw to black protester Rakeem Jones in a Trump rally in North Carolina on Wednesday.

McGraw has already been filed with charges by the police after delivering a sucker punch to Jones, who protested against Trump. The whole incident was captured on video.

McGraw, however, did not show any remorse for his actions. In an interview with the "Inside Edition," he said that Jones deserved it. "The next time we see him, we might have to kill him. We don't know who he is. He might be with a terrorist organization," he added.

Another related incident is the altercation that took place in a New Orleans rally. At least 20 people who were related to the Black Lives Matter movement were aggressively escorted out from a campaign event.

There is also an incident involving a journalist and Trump's campaign manager Corey Lewandowski. Breitbart reporter Michelle Fields filed charges of physical assault against Lewandowski after a press conference in Florida.

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