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Trump calls off rally amid protests Trump calls off Chicago rally following violent clashes
(35 minutes later)
US Republican Donald Trump calls off Chicago rally on safety grounds after protesters clash with supporters US Republican front-runner Donald Trump has called off a rally in Chicago on safety grounds after widespread protests led to violent clashes.
This breaking news story is being updated and more details will be published shortly. Please refresh the page for the fullest version. A statement from Mr Trump's campaign said the candidate decided to cancel the event after a meeting with police.
If you want to receive Breaking News alerts via email, or on a smartphone or tablet via the BBC News App then details on how to do so are available on this help page. You can also follow @BBCBreaking on Twitter to get the latest alerts. Hundreds of protesters gathered outside the venue at the University of Illinois hours before Mr Trump was due.
Inside the auditorium, fighting broke out between supporters and protesters, who waved flags and chanted.
There were chants for Mr Trump from his supporters and for Democratic candidate Bernie Sanders from some of the protesters.
There were several violent clashes, some sparked by Trump supporters attempting to wrestle flags from protesters.
One protester had to be physically removed from the stage by what appeared to be a Secret Service agent.
Violent clashes continued outside the venue, with helicopter footage showing chaotic scenes as police attempted to control the large crowds.
The full statement from Mr Trump's campaign read: "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."
Staff at the university had earlier petitioned administrators to cancel the rally, citing concerns it would create a "hostile and physically dangerous environment" for students.
Earlier on Friday, 32 people were arrested after protests at a rally held by Mr Trump rally in St Louis, Missouri.
Mr Trump was repeatedly interrupted by the protesters, who he called a "disgrace".
These latest clashes come just a day after a Trump supporter was charged with assault after multiple videos showed him punching a protester at a campaign rally in North Carolina.
The billionaire later said that the supporter's actions were "appropriate".