What to know

• With more than 50% of votes counted, the four opposition parties led by Social Democratic leader Magdalena Andersson had a narrow lead against Prime Minister Ulf Kristersson's right-wing alliance. Experts predicted that the race could go down to the wire.S1
• A shock analysis contradicts exit polls and holds out hope to PM Ulf Kristersson that he could cling to power with help from the far right.S2