Moldova held a parliamentary poll on Sunday, with both pro-Russian and pro-EU forces accusing the ruling party of massive election fraud.
They said the Democratic Party, led by powerful oligarch Vlad Plahotniuc, had bussed in people from the former Soviet state's breakaway region of Transnistria and told them how to vote.
Moldova's pro-Moscow President Igor Dodon and pro-Brussels opposition leader Andrei Nastase both alleged the party had conspired with Transnistrian separatist authorities to organise the fraud. Dodon urged people not to be tempted by bribes.
"Don't be afraid or let people buy you off. Don't be afraid of losing your job," Dodon said after voting in the capital Chisinau. "I know people are encouraging you to vote for certain parties."
Nastase alleged that "they (the ruling party) are bussing in vulnerable people ripe for corruption," he said. But Democratic Party deputy chairman Vladimir Chebotar said he had information that it was Socialist Party leaders who were offering bribes to residents of Transnistria to back its candidates.
Authorities in Transnistria -- which broke away from Moldova after the fall of the USSR but is not recognised internationally -- did not allow polling stations to be opened in the region.
But around 220,000 people living in the narrow stretch of land hold Moldovan citizenship and are eligible to vote on the opposite side of the Dniester River that separates the rebel republic from government-controlled territory.
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Chebotar on Sunday acknowledged that there had been "violations" during the election but shrugged them off, saying they would "not affect the voting process."
Polling stations closed at 9:00 pm local time (1900 GMT), with voter participation at 49.08 per cent, according to electoral authorities. Results are expected on Monday.
No party is likely to gain the majority needed to form a government in the country of 3.5 million people, and analysts are concerned the vote will be followed by a period of instability.
While many want to maintain close ties with Moscow, others are looking towards the European Union, seeking to follow the example of Romania, with which Moldova shares a language and long history.
Victoria Chetrean, 40, told AFP she voted for the pro-European alliance that favours joining the EU and NATO. "My husband has worked in Italy for over 10 years for us to have a bare minimum standard of living," she said.
"We should work towards European living standards." Moldova's economy is propped up by remittances from workers abroad, which has caused the working-age population to fall sharply.
"People are disillusioned with the state, a million people have left," said Ion Vasilache, a 42-year-old university lecturer who supports Moldova joining the EU.
"I am ready to leave tomorrow. If the same corrupt authorities stay in power after the election, I will leave for Romania," he said.
Dodon's pro-Moscow Socialist Party was leading in recent opinion polls, advocating for Moldova to join Russia's Eurasian Economic Union. Russia has rallied around Dodon, a close ally of President Vladimir Putin.
Vasilii Ianioglo, a 57-year-old driver from the Gagauz minority -- a Turkish-speaking people who are traditionally Russian-leaning -- praised Dodon's frequent Kremlin visits.
He voted for the Socialists, describing it as "the only party that looks after national minorities". As well as seeking to keep Moldova in its sphere of influence, Moscow has long backed separatists in Russian-speaking Transnistria.
Fuelling tensions ahead of the vote, Russian authorities had on Friday accused ruling party leader Plahotniuc of running a vast money-laundering scheme in 2013-14.
But on Sunday, parliamentary speaker Andrian Candu said it was merely a Russian ploy to influence the election. "It is all manipulation and disinformation," he said after voting in Chisinau.
"It's not the first time that Russia tries to influence Moldova's election." The Democratic Party has sought a balanced approach between Moscow and the EU.
But relations with the EU have deteriorated. Last November, Brussels reduced aid citing a "deterioration of the rule of law" -- a reference mainly to corruption.
Moldova last year ranked 117 out of 180 nations in Transparency International's Corruption Perceptions Index.
A businessman convicted in a billion-dollar fraud case -- Israeli-born Ilan Shor -- is likely to make it to parliament, a case analysts say exposes widespread graft.
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