Sweden is in a political gridlock following elections on Sunday. Support for the far-right Sweden Democrats party has left the two main political blocs without majorities in Parliament. Both have vowed not to work with the party, which has its roots in the neo-Nazi movement. But that could lead to a long period of indecision as the parties of the center-right and center-left try to form coalitions. CGTN's Guy Henderson reports from Stockholm.

With most of the votes counted, the centre left Social Democrats are so far just in front. Within hours of the first exit polls though, the incumbent's centre right opponents were already calling on the prime minister to stand aside and let them form a coalition government.  

ULF KRISTERSSON, LEADER MODERATE PARTY "The Swedish people have chosen a new parliament, the (centre-right) Alliance is clearly bigger than the government. This government has run its course. It ought never have been and now it should resign."

Stefan Lofven is refusing: so there's a deadlock. "Chaos" one Monday morning paper reads. Another: "voters punish Lofven". Who might lead the next government is at this stage anyone's guess.  

One party buoyed by the percentages is the far right Sweden Democrats. Who now warn they'll use their gains in parliament to block any government that continues to isolate them.  

JIMMIE AKESSON, LEADER SWEDEN DEMOCRATS "We won't participate in letting through a government which doesn't give us influence - on the contrary - we will do what we can to take down any such government. So the reasonable thing is that if one wants to form a government, one ought to talk to us and try to agree with us".  

So far all other parties are refusing. Apparently preferring no government at all, to one with far right influence.  

GUY HENDERSON STOCKHOLM "This situation is unprecedented in Swedish politics. Preliminary results are so close it may come down to the votes of Swedes living abroad which will be counted later this week. And then will begin potentially very difficult coalition talks. A new government could potentially still be months away. GH, CGTN, Stockholm."