Milo Yiannopoulos reportedly planned to publicly name undocumented students at his cancelled Berkeley University event.

The Breitbart senior editor, who was one of Twitter’s most notorious trolls until the site permanently banned him in July, was due to speak at the university on Wednesday but the event was called off due to heated protests.

Demonstrators threw smoke bombs, started fires and smashed windows.

Berkeley University officials warned Mr Yiannopoulos, an outspoken Donald Trump supporter, was planning to use the talk to target students who do not have documentation to live in the US.

“We are deeply concerned for all students’ safety and ability to pursue their education here at Cal beyond Milo’s speech,” the university’s Office of Student Affairs said in a letter sent to Berkeley College Republicans, the students hosting the event, on Tuesday.

“Milo’s event may be used to target individuals, either in the audience or by using their personal information in a way that causes them to become human targets to serve a political agenda.”

Mr Yiannopoulos told The Independent that suggestions he would use the event to name undocumented migrants were "a total fabrication" and categorically denied the reports.

George Ciccariello-Maher, a professor at Drexel University, claimed reliable sources believed Mr Yiannopoulos was planning on outing undocumented students.

“Reliable sources say Milo planned to publicly name undocumented students @UCBerkeley. Debate over: shutting him down was necessary & good,” he wrote on Twitter.

The controversial orders Donald Trump has already issued Show all 9 1 /9 The controversial orders Donald Trump has already issued The controversial orders Donald Trump has already issued Trump and the media White House Press Secretary Sean Spicer takes questions during the daily press briefing Getty Images The controversial orders Donald Trump has already issued Trump and the Trans-Pacific Partnership Union leaders applaud US President Donald Trump for signing an executive order withdrawing the US from the Trans-Pacific Partnership negotiations during a meeting in the Roosevelt Room of the White House in Washington DC. Mr Trump issued a presidential memorandum in January announcing that the US would withdraw from the trade deal Getty The controversial orders Donald Trump has already issued Trump and the Mexico wall A US Border Patrol vehicle sits waiting for illegal immigrants at a fence opening near the US-Mexico border near McAllen, Texas. The number of incoming immigrants has surged ahead of the upcoming Presidential inauguration of Donald Trump, who has pledged to build a wall along the US-Mexico border. A signature campaign promise, Mr Trump outlined his intention to build a border wall on the US-Mexico border days after taking office Getty Images The controversial orders Donald Trump has already issued Trump and abortion US President Donald Trump signs an executive order as Chief of Staff Reince Priebus looks on in the Oval Office of the White House. Mr Trump reinstated a ban on American financial aide being granted to non-governmental organizations that provide abortion counseling, provide abortion referrals, or advocate for abortion access outside of the United States Getty Images The controversial orders Donald Trump has already issued Trump and the Dakota Access pipeline Opponents of the Keystone XL and Dakota Access pipelines hold a rally as they protest US President Donald Trump's executive orders advancing their construction, at Columbus Circle in New York. US President Donald Trump signed executive orders reviving the construction of two controversial oil pipelines, but said the projects would be subject to renegotiation Getty Images The controversial orders Donald Trump has already issued Trump and 'Obamacare' Nancy Pelosi who is the minority leader of the House of Representatives speaks beside House Democrats at an event to protect the Affordable Care Act in Los Angeles, California. US President Donald Trump's effort to make good on his campaign promise to repeal and replace the healthcare law failed when Republicans failed to get enough votes. Mr Trump has promised to revisit the matter Getty Images The controversial orders Donald Trump has already issued Donald Trump and 'sanctuary cities' US President Donald Trump signed an executive order in January threatening to pull funding for so-called "sanctuary cities" if they do not comply with federal immigration law AP The controversial orders Donald Trump has already issued Trump and the travel ban US President Donald Trump has attempted twice to restrict travel into the United States from several predominantly Muslim countries. The first attempt, in February, was met with swift opposition from protesters who flocked to airports around the country. That travel ban was later blocked by the Ninth Circuit Court of Appeals. The second ban was blocked by a federal judge a day before it was scheduled to be implemented in mid-March SANDY HUFFAKER/AFP/Getty Images The controversial orders Donald Trump has already issued Trump and climate change US President Donald Trump sought to dismantle several of his predecessor's actions on climate change in March. His order instructed the Environmental Protection Agency to reevaluate the Clean Power Plan, which would cap power plant emissions Shannon Stapleton/Reuters

Kumars Salehi, a Berkeley PHD student, claimed Mr Yiannopoulos was planning to broadcast the talk in an online live stream.

Far-right news site Breitbart published an article a day before the event, saying Mr Yiannopoulos would use the Berkeley talk to claim US universities have become “sanctuary campuses that shelter illegal immigrants from being deported”.

“Backed by the Freedom Center (Mr Yiannopoulos) will call for the withdrawal of federal grants and the prosecution of university officials who endanger their students with their policies, starting with UC President and former Secretary of Homeland Security, Janet Napolitano and Berkeley Chancellor Nicholas Dirks,” reads the article.

Since the talk was cancelled, Mr Yiannopoulos has claimed he was planning to discuss cultural appropriation in a full Native American headdress at the event.

President Trump responded to the protests against Mr Yiannopoulos by appearing to threaten to withdraw Berkeley's federal funding.

“If UC Berkeley does not allow free speech and practices violence on innocent people with a different point of view - NO FEDERAL FUNDS?” he wrote on Twitter.

Mr Yiannopoulos was permanently suspended from Twitter in July following claims he had aggravated and helped lead the Twitter abuse of Ghostbusters actor Leslie Jones. He has been dubbed a spokesperson for the so-called “alt-right movement” - a political movement which has been accused of racism, antisemitism, misogyny, and of sharing an ideology with far-right parties such as the French National Front.