SAN JOSE, Calif. — Donald Trump supporters were mobbed and assaulted by protesters on Thursday night after the candidate's campaign rally in California.

The violence broke out after the event in San Jose wrapped up just before 8 p.m. local time (11 p.m. ET). Some Trump supporters were punched. One woman wearing a "Trump" jersey was cornered, spit at, and pelted with eggs and water bottles.

Police held back at first but eventually moved in. San Jose Police Sgt. Enrique Garcia told NBC News that several protesters were arrested and one officer was assaulted in the melee.

The videos below contains language some may find offensive.

Watch: The moment a Trump supporter, surrounded by protesters, is egged in the face, hit by other food. pic.twitter.com/qYFdwJWvrS — Jacob Rascon (@KPRC2Jacob) June 3, 2016

Lan Hoang said anti-Trump protesters stole his "Make America Great Again" hat off of his head and set it on fire as he was leaving the rally.

The 24-year-old said he saw "a lot" of Trump supporters get attacked on the walk back to his car after the rally.

Protesters also smashed cars in a nearby parking structure and surrounded and taunted an elderly couple, according to Steve Tong.

"It was unbelievable," he told NBC Bay Area. "I've never seen anything like that in America before,"

Adam Rivas, a 22-year-old community college student who was born and raised in San Jose, was among those who turned out ahead of the rally to protest Trump.

Holding a "Dump Trump" sign, he told NBC Bay Area that Trump's remarks about Mexicans were offensive.

Hillary Clinton's campaign chair John Podesta condemned the violence, saying that "violence against supporters of any candidate has no place in this election."

"For any one Mexican here he bashes, there are about 20 Mexicans out there who are hard-working and just doing their job,'' Rivas said.

Police rush protesters, plainclothes officer tackles one, who is then surrounded and detained. pic.twitter.com/Zwo05DZMLQ — Jacob Rascon (@KPRC2Jacob) June 3, 2016

It wasn't the first Trump rally in California to turn violent. About 20 people were arrested after an April speech by Trump in Costa Mesa south of Los Angeles, when members of the crowd damaged five police vehicles.

Inside the San Jose Convention Center, Donald Trump was in full attack mode Thursday night, repeating his claim that Hillary Clinton's use of a personal email server was illegal.

Trump's assault on Clinton came just hours after the Democratic candidate gave a national security speech painting the GOP nominee as reckless and dangerous. Trump called Clinton's speech a "phony hit job" and retaliated by criticizing the former Secretary of State for her email scandal, foreign policy legacy, and her gun control policy proposals.

Photos of protesters clashing with Trump supporters in San Jose



21 PHOTOS Protesters clash with Trump supporters in San Jose See Gallery Protesters assault Trump supporters with eggs, bottles, punches after rally Victor Cristobal (C), of San Jose, chants during a demonstration outside a campaign rally for Republican U.S. presidential candidate Donald Trump in San Jose, California, U.S. June 2, 2016. REUTERS/Stephen Lam A supporter for Republican U.S. presidential candidate Donald Trump covers his ears as he walks past a demonstrator outside a campaign rally in San Jose, California, U.S. June 2, 2016. REUTERS/Stephen Lam A supporter of Republican U.S. presidential candidate Donald Trump reacts after she was surrounded and egged by demonstrators after a campaign rally in San Jose, California, U.S. June 2, 2016. REUTERS/Stephen Lam Demonstrators chant around a car during a demonstration against Republican U.S. presidential candidate Donald Trump after his campaign rally in San Jose, California, U.S. June 2, 2016. REUTERS/Stephen Lam A demonstrator burns a hat in protest of Republican U.S. presidential candidate Donald Trump outside a campaign rally in San Jose, California, U.S. June 2, 2016. REUTERS/Stephen Lam A supporter (C) of Republican U.S. presidential candidate Donald Trump collides with another man after he was confronted by demonstrators outside a campaign rally in San Jose, California, U.S. June 2, 2016. REUTERS/Stephen Lam A police officer gestures to a supporter of Republican U.S. presidential candidate Donald Trump after he was harassed by demonstrators at a campaign rally in San Jose, California, U.S. June 2, 2016. REUTERS/Stephen Lam A demonstrator (L) flips the hat off a supporter of Republican U.S. presidential candidate Donald Trump after a campaign rally in San Jose, California, U.S. June 2, 2016. REUTERS/Stephen Lam A supporter of Republican U.S. presidential candidate Donald Trump runs after being confronted by demonstrators after a campaign rally in San Jose, California, U.S. June 2, 2016. REUTERS/Stephen Lam A supporter of Republican U.S. presidential candidate Donald Trump reacts after she was surrounded and egged by demonstrators after a campaign rally in San Jose, California, U.S. June 2, 2016. REUTERS/Stephen Lam A supporter for Republican U.S. presidential candidate Donald Trump (L) exchange words with a demonstrator during a campaign rally in San Jose, California, U.S. June 2, 2016. REUTERS/Stephen Lam Protesters hold up signs against a police skirmish line near where Republican presidential candidate Donald Trump holds a rally in San Jose, California on June 02, 2016. Protesters attacked Trump supporters as they left the rally, burned an american flag, trump paraphernalia and scuffled with police and each other. / AFP / JOSH EDELSON (Photo credit should read JOSH EDELSON/AFP/Getty Images) Anti-Trump protesters demonstrate outside the convention center where Republican presidential candidate Donald Trump held an election rally in San Jose, California on June 2, 2016. Protesters who oppose Donald Trump scuffled with his supporters on June 2 as the presumptive Republican presidential nominee held a rally in California, with fistfights erupting and one supporter hit with an egg. / AFP / Mark Ralston (Photo credit should read MARK RALSTON/AFP/Getty Images) Anti-Trump protesters attack a Trump supporter (C) as he tries to leave a parking garage at the convention center where Republican presidential candidate Donald Trump held an election rally in San Jose, California on June 2, 2016. Protesters who oppose Donald Trump scuffled with his supporters on June 2 as the presumptive Republican presidential nominee held a rally in California, with fistfights erupting and one supporter hit with an egg. / AFP / Mark Ralston (Photo credit should read MARK RALSTON/AFP/Getty Images) Anti-Trump protesters confront Trump supporters as they try to leave a parking garage at the convention center where Republican presidential candidate Donald Trump held an election rally in San Jose, California on June 2, 2016. Protesters who oppose Donald Trump scuffled with his supporters on June 2 as the presumptive Republican presidential nominee held a rally in California, with fistfights erupting and one supporter hit with an egg. / AFP / Mark Ralston (Photo credit should read MARK RALSTON/AFP/Getty Images) Police move in to disperse anti-Trump protesters as they demonstrate outside the convention center where Republican presidential candidate Donald Trump held an election rally in San Jose, California on June 2, 2016. Protesters who oppose Donald Trump scuffled with his supporters on June 2 as the presumptive Republican presidential nominee held a rally in California, with fistfights erupting and one supporter hit with an egg. / AFP / Mark Ralston (Photo credit should read MARK RALSTON/AFP/Getty Images) Anti-Trump protesters demonstrate outside the convention center where Republican presidential candidate Donald Trump held an election rally in San Jose, California on June 2, 2016. Protesters who oppose Donald Trump scuffled with his supporters on June 2 as the presumptive Republican presidential nominee held a rally in California, with fistfights erupting and one supporter hit with an egg. / AFP / Mark Ralston (Photo credit should read MARK RALSTON/AFP/Getty Images) A youth (C) wearing a Donald Trump t-shirt runs as he is chased by protesters near the venue where Republican presidential candidate Donald Trump was speaking during a rally in San Jose, California on June 2, 2016. Protesters who oppose Donald Trump scuffled with his supporters on June 2 as the presumptive Republican presidential nominee held a rally in California, with fistfights erupting and one supporter hit with an egg. / AFP / JOSH EDELSON (Photo credit should read JOSH EDELSON/AFP/Getty Images) Protesters climb atop a car stopped in traffic as a crowd marches near the venue where Republican presidential candidate Donald Trump was speaking during a rally in San Jose, California on June 2, 2016. Protesters who oppose Donald Trump scuffled with his supporters on June 2 as the presumptive Republican presidential nominee held a rally in California, with fistfights erupting and one supporter hit with an egg. / AFP / JOSH EDELSON (Photo credit should read JOSH EDELSON/AFP/Getty Images) A woman wearing a Trump shirt (C) is pelted with eggs by protesters while pinned against a door near where Republican presidential candidate Donald Trump holds a rally in San Jose, California on June 02, 2016. Protesters attacked Trump supporters as they left the rally, burned an american flag, trump paraphernalia and scuffled with police and each other. / AFP / JOSH EDELSON (Photo credit should read JOSH EDELSON/AFP/Getty Images) A Trump hat burns during a protest near where Republican presidential candidate Donald Trump held a rally in San Jose, California on June 02, 2016. Protesters attacked trump supporters as they left the rally, burned an american flag, Trump paraphernalia and scuffled with police and each other. / AFP / JOSH EDELSON (Photo credit should read JOSH EDELSON/AFP/Getty Images) Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

He also revived an attack line he famously used against former Republican rival Jeb Bush — energy level. "I watched Hillary's thing today, it's like Sominex ... you ever hear of Sominex? Sleep all night. It's hard to stay awake!" Trump said. "I'm not a big sleeper. I think [Clinton] could make more money if she made speeches and sold them to people who can't sleep."

At one point, the presumptive Republican nominee appeared sensitive to Clinton's attacks on his lack of foreign policy experience.

"Don't let the no experience fool you," Trump said. "I've been on the other side of the equation ... I was very much a part of the establishment. I was a big donor."

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