Electronic voting machines in California have been hit by widespread technical difficulties on Super Tuesday, which have frustrated voters and may delay some results.

Los Angeles county — home to more than 5 million voters — was among the worst-affected, as many took to social media to complain of problems with a new $300 million voting system.

Some voters tweeted their complaints directly at election officials.

“Went to two voting centers this morning. Turned away from both locations. First one the brand new tablets were broken. Second place the equipment has not been delivered yet. Fearful of what I'll discover at third center,” wrote Kevin Koons.

Super Tuesday: Lively scenes as results flood in across 14 states Show all 29 1 /29 Super Tuesday: Lively scenes as results flood in across 14 states Super Tuesday: Lively scenes as results flood in across 14 states An anti-dairy protester is led away after storming the stage at Joe Biden's Super Tuesday event in Los Angeles, California EPA Super Tuesday: Lively scenes as results flood in across 14 states Supporters of Bernie Sanders cheer as results are announced at a Super Tuesday party in Texas AFP/Getty Super Tuesday: Lively scenes as results flood in across 14 states Supporters of Joe Biden hold up an election pooster from Barack Obama's 2008 run at a Super Tuesday event for the Democratic contender Reuters Super Tuesday: Lively scenes as results flood in across 14 states Bernie Sander takes to the stage before supporters during his Super Tuesday event in Vermont EPA Super Tuesday: Lively scenes as results flood in across 14 states Supporters of Bernie Sanders cheer as results are announced at a Super Tuesday party in Texas AFP/Getty Super Tuesday: Lively scenes as results flood in across 14 states Supporters of Bernie Sanders cheer as results are announced at a watch party in Texas AFP/Getty Super Tuesday: Lively scenes as results flood in across 14 states Joe Biden gestures to suppporters at a Super Tuesday event for the Democratic contender AP Super Tuesday: Lively scenes as results flood in across 14 states Elizabeth Warren waves to supporters at a rally in Michigan as results come in following Super Tuesday Getty Super Tuesday: Lively scenes as results flood in across 14 states A spray painted mural of presidential candidate Senator Bernie Sanders on the side of a building in Kirby, Vernont EPA Super Tuesday: Lively scenes as results flood in across 14 states Supporters of Bernie Sandes cheer at a Super Tuesday rally in Vermont Getty Super Tuesday: Lively scenes as results flood in across 14 states Supporters of Elizabeth Warren hold sings and cheer in Cambridge Getty Super Tuesday: Lively scenes as results flood in across 14 states Democratic presidential candidate Elizabeth Warren leaves the voting booth at the Graham & Parks School in Cambridge, Massachusetts Getty Super Tuesday: Lively scenes as results flood in across 14 states A poster for sale at a rally for Bernie Sanders on Super Tuesday in Vermont Getty Super Tuesday: Lively scenes as results flood in across 14 states Democratic voter Elliot Zaagman wears a protective mask as he poses for a photo after casting his ballot in Bangkok, Thailand EPA Super Tuesday: Lively scenes as results flood in across 14 states Daisy, a Golden Retriever, outside a polling in San Diego. 1,357 Democratic delegates are at stake as voters cast their ballots in 14 states and American Samoa on what is known as Super Tuesday Getty Super Tuesday: Lively scenes as results flood in across 14 states Democratic presidential candidate Bernie Sanders (greets fellow voters after casting his ballot in his state's primary election at the Robert Miller Community Center in Burlington, Vermont Getty Super Tuesday: Lively scenes as results flood in across 14 states A first time voter stands behind a voting booth in a polling location for the North Carolina primary Reuters Super Tuesday: Lively scenes as results flood in across 14 states Democratic presidential candidate Michael Bloomberg takes part in his Super Tuesday night rally in West Palm Beach, Florida Reuters Super Tuesday: Lively scenes as results flood in across 14 states Fourteen states are holding their primaries with more than one third of the total pledged delegates in the Democratic primaries to be awarded on Super Tuesday Getty Images Super Tuesday: Lively scenes as results flood in across 14 states Presidential candidate Elizabeth Warren and her husband Bruce Mann greet supporters as they walk to a polling site to vote on Super Tuesday in Cambridge, Massachusett EPA Super Tuesday: Lively scenes as results flood in across 14 states Voters cast their ballots at a polling location inside an elementary school on Super Tuesday in Minneapolis, Minnesota EPA Super Tuesday: Lively scenes as results flood in across 14 states Democrat Jamie Wilson displays a sticker after voting in the Super Tuesday primary at John H. Reagan Elementary School in the Oak Cliff section of Dallas, Tuesday, March 3, 2020. (AP Photo/LM Otero) LM Otero AP Super Tuesday: Lively scenes as results flood in across 14 states Democratic voter Le'ana Freeman poses for a photo after casting her ballot at a polling station in Bangkok EPA Super Tuesday: Lively scenes as results flood in across 14 states Voters arrive to cast their ballots at a polling location inside Hunter House at Nottoway Park in Vienna EPA Super Tuesday: Lively scenes as results flood in across 14 states Democrat Jamie Wilson gets a sticker after voting in the Oak Cliff section of Dallas AP Super Tuesday: Lively scenes as results flood in across 14 states A Polling Place sign in the border town of Hidalgo, Texas EPA Super Tuesday: Lively scenes as results flood in across 14 states A girl carries her mothers ballot to the table where she will fill in her choice at the Taylor Elementary School polling location in Arlington Getty Images Super Tuesday: Lively scenes as results flood in across 14 states A man wearing an 'I Voted' sticker and a 'Bernie Abroad' badge after voting in the American presidential primary in Oxford, England Getty Images Super Tuesday: Lively scenes as results flood in across 14 states Stickers for people who vote AFP via Getty Images

But issues were reported across the state, which awards the most number of delegates in the primary race. State election officials in 15 counties reported issues with their computer systems, according to the Los Angeles Times. The result was that many people were only able to cast provisional ballots, and their eligibility would not be confirmed until after election day.

Many voters reported an issue with internet connectivity at some polling stations, according to the report.

“There is no evidence of malicious activity, and all counties have restored connectivity at this time,” Sam Mahood, a spokesman for Secretary of State Alex Padilla, told the LA Times. “This should not prevent any voters from casting a ballot, as counties have contingency procedures in place to check in voters.”

Los Angeles introduced the new voting system ahead of the crucial Super Tuesday vote, in the biggest change to its polling procedure in decades.

But some analysts had warned against rolling out the new system for the first time for such a large-scale and important vote.

Jennifer Cohn, an election integrity advocate, compiled a list of more than 90 media reports and social media posts from voters reporting problems with the new machines.

“A TWO-THREE HOUR wait to vote in Los Angeles county is not OK. Apparently there were problems with both the new e-pollbooks and w/ the new voting machines. We need answers The plan is to inflict this system on other parts of the country after 2020,” she wrote.