ALBANY, N.Y. (AP) — A deluge of yet-to-be-counted absentee ballots in New York this year means voters may have to wait until July to find out who won primary elections for Congress and other offices Tuesday following pandemic-era campaigns in which candidates largely had to connect with voters online.

With the state allowing anyone to vote by absentee ballot rather than risk getting exposed to the coronavirus at a polling location, the process of collecting and counting votes will be different this year and will lead to delayed results particularly for tight races. About 1.8 million people requested absentee ballots by mid-June and had until Tuesday to postmark them, according to elections officials.

Voters reported scattered problems with incomplete ballots and poll sites opening late, and as polls closed at 9 p.m. there were still several reports of exceedingly long lines in suburbs north of New York City.

New York state Attorney General Letitia James’ office had gotten about 150 complaints by mid-afternoon, mainly about voters not getting absentee ballots they’d requested, polling sites opening late and voters receiving incomplete ballots. The good-government advocacy group Common Cause New York had fielded about 100 complaints about similar issues, largely in New York City, and about some poll sites grappling with spotty wireless service.

It’s not unusual for New York elections to have some glitches. On Tuesday, “the unique problem was the two-page ballot,” Common Cause New York Executive Director Susan Lerner said. Presidential and congressional primary candidates were on one page, with state and local primary hopefuls on another.

Voter Dena Cooper said she applied in roughly April for an absentee ballot that never arrived, so she went to her polling place in Brooklyn’s Bay Ridge neighborhood to vote in person. But when she explained the situation to a poll worker, she was told to go home and wait for the absentee ballot to arrive.

“They said, ‘You can’t vote. You need to go back,’” she said in an interview. “I feel turned away.”

In fact, New York voters who have applied for but not cast absentee ballots can legally vote in person. After getting advice from Common Cause’s voter-information hotline, Cooper said she returned to the polls Tuesday evening and successfully cast her ballot.

Poll workers across the state have spent weeks ordering personal protective gear, preparing for early voting that concluded Sunday and planning measures that include disinfecting ballot scanners and reducing foot traffic in narrow hallways.

Voting locations in the Albany suburb of Guilderland were staffed with mask-wearing poll workers Tuesday morning, but only a trickle of voters came through.

Pappachen and Alice George said they forgot to get their absentee ballot applications in on time but were able to easily fill out paper ballots at an uncrowded local fire station.

“Now I can see that my vote counted,” Pappachen George said.

Polls closed at 9 p.m., but because absentee ballots aren't opened and counted in New York until at least a week after election day, the results of many primary contests might not be known until July.

Numerous social media posts Tuesday night showed long lines of voters at several polling sites in Westchester County. That includes at least two polling locations in Yonkers, located in the 16th congressional district, where U.S. Rep. Eliot Engel is in a primary battle with fellow Democrats including Jamaal Bowman.

Bowman shared video of the lines on Twitter and called the lines “terrible."

“We need to ensure that poll workers don’t leave their places and that voters are being routinely told their votes will surely count as long as they stay in line,” Bowman tweeted.

As for the contests themselves, voters selected former Vice President Joe Biden as the Democratic nominee for president. That primary was largely rendered moot after state officials postponed it from April because of the pandemic and Joe Biden's major opponents all subsequently dropped out of the race.

The vote was still held, though, after a court overturned an attempt by Democratic state elections commissioners to cancel the primary.

A number of hotly contested congressional primaries will be the main event in many parts of the state.

Eleven House Democrats are facing primary challenges, including representatives Engel and Yvette Clarke, who are both facing challenges from their party’s left-wing.

U.S. Rep. Alexandria Ocasio-Cortez defeated her Democratic challengers for New York’s 14th Congressional District, in her first defense of the seat she claimed in a shocking victory two years ago.

Voters are also picking who will represent their party in the race for House seats opening up due to the retirements of Republican Peter King and Democrats Nita Lowey and José Serrano.

Republican state Sen. Chris Jacobs won a special election that concluded Tuesday and will serve as the successor to U.S. Rep. Chris Collins, a Republican in western New York who resigned after an insider trading conviction. Jacobs also won a three-way primary to be the Republican candidate in November’s general election.

On the state level, 33 Democrats and one Republican in the Assembly and state Senate are facing primary challengers. Republicans are hoping to maintain their seats in a year when several state lawmakers have announced they won’t run for re-election.

Voting locations across the state were open, but upstate there were about 3,000 fewer precincts than in a normal year due to the difficulties of maintaining social distancing and expectations that more people will vote by mail.

Erie County, home to the state’s second largest city, Buffalo, said it had 15 fewer polling locations than in the previous election. Madison County in central New York, had just 17 polling sites, down from 32 normally.

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Associated Press writer Jennifer Peltz in New York contributed to this report.

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This story has been corrected to show that there were 3,000 fewer upstate precincts than in a normal year, instead of 3,000 fewer voting locations; and to delete incorrect numbers of polling sites in Erie, Monroe and Madison counties, and replace them with new figures for Erie and Madison counties.