Results from voting in Iowa, the first round in the contest to pick a Democratic candidate to face President Donald Trump, have been plunged into chaos by apparent technology issues.
The state's Democratic party said the holdup was a "reporting issue", adding that it expected to "have numbers to report later today [Tuesday]".
On Monday, voters flocked to more than 1,600 schools, libraries and churches.
Despite the absence of results, several candidates are claiming victory.
Vermont Senator Bernie Sanders spoke of winning in Iowa's caucuses, citing internal campaign data that placed him ahead of Pete Buttigieg, the former mayor of South Bend, Indiana.
The Democratic Party’s effort to choose an election challenger to Republican U.S. President Donald Trump got off to a chaotic start in Iowa, with officials blaming “inconsistencies” for an indefinite delay in the state’s caucus results.
Early on Tuesday, hours after voters made their choices at 1,600 schools and other public locations, Iowa Democratic Party Chairman Troy Price told reporters to expect results sometime on Tuesday in the state, the first to hold a nominating contest.
The party said it had to make “quality checks” after finding “inconsistencies” in the reporting of the data from the caucus sites, sparking frustration in Democratic campaigns and criticism from Republicans.
It was unclear when any results would be released.
Iowa voters were meeting to render judgment on a field of 11 Democratic contenders led by front-runner Senator Bernie Sanders of Vermont and his rivals, former Vice President Joe Biden, former South Bend, Indiana, Mayor Pete Buttigieg and Senator Elizabeth Warren of Massachusetts.
Party officials voiced confidence in their ability to ensure accurate results, citing a paper trail to validate the votes.
Republican Brad Parscale, Trump’s campaign manager, called it a “Democratic Party meltdown,” on Twitter. “They can’t even run the caucus and they want to run the government. No thank you.”
But Republicans in Iowa have their own history of chaos. On the night of the party’s 2012 caucuses, Mitt Romney was declared to have won by eight votes. But the party said two weeks later that Rick Santorum was the actual winner by a 34-vote margin. Romney went on to be the nominee.
Majority of Iowa Democrats simply want to defeat Trump.
As Iowa’s Democrats entered their party’s caucuses on Monday, defeating President Donald Trump in November’s election was at the top of their minds when considering which candidate to support for the party’s 2020 presidential nomination, according to preliminary findings by the National Election Pool (NEP).