The Swedish prime minister has rejected calls to resign and said that "nothing will be determined" on an election night that has seen no clear winner emerge after major gains for an anti-immigration party. Neither the centre-right bloc or centre-left bloc in Sweden has taken a convincing victory on a positive night for the far-right Sweden Democrats, who are in a powerful position as the third largest party based on early results. Leader Jimmie Akesson said they were the "real winners" of the election and that the party would now have influence over Swedish politics, with a meeting with centre-right bloc leader Ulf Kristersson due on Monday. Mr Kristersson, in turn, has called on Prime Minister Stefan Lofven to step…