The opposition has increased its lead over Sweden's Alliance government according to a new opinion poll by Sifo.
Two men have been detained on suspicion of murdering a man in an apartment in Hässelby strand in wester Stockholm on Saturday night.
Swedish striker Zlatan Ibrahimovic celebrated his sixth straight league title as Inter Milan claimed their fourth consecutive Serie A crown on Saturday thanks to title rivals AC Milan's loss to Udinese.
The Swedish ambassador to North Korea met two detained US journalists on Friday, the first such contact in six weeks, a senior US official said.
Sweden and Malena Ernman could only manage a 21st place and 33 votes in Saturday's Eurovision Song Contest. Scandinavian neighbour Norway had a perfect start to national day celebrations by claiming the title.