Slovak Prime Minister Robert Fico was poised to win Saturday's parliamentary election, partial results showed, but gains by opposition parties, including far-right extremists, will complicate formation of a new government.
Fico, a leftist whose anti-immigration views are in line with neighbors Poland and Hungary, took 29.1 percent of the vote, far ahead of others but less than around 35 percent predicted in opinion surveys, results from 54.2 percent of voting districts showed.
With eurozone member Slovakia due to take over the European Union's rotating presidency from July, giving it a bigger role in EU policy discussions over the bloc's migration crisis, the election is being watched closely in Brussels.