Montenegro's ruling party has won the most votes the small Balkan country's parliamentary vote, according to unofficial results.
But it does not have enough votes to govern alone and assure the country's chartered course into NATO and other Western institutions.
The tense election was marked by the arrest of 20 people suspected of planning politically motivated armed attacks after the polls closed in the vote during which Prime Minister Milo Djukanovic faced the toughest challenge yet to his quarter-century rule.
The independent CeMI election monitoring group said that with 100 per cent of the vote counted, the Democratic Party of Socialists won 41 per cent, while two opposition parties _ the Democratic Front and the Key Coalition have _ 20 and 11 per cent respectively.
The monitoring group used its own vote count at the polling stations.
Both the ruling party and the opposition claimed they have enough seats to form the country's future government.
