At least two car bombs explode in Stockholm, Sweden, killing at least one person and injuring two more.
- A vehicle is driven into a group of people on a street in Stockholm, Sweden, killing four people.
- Ukraine's Jamala, performing the song "1944", wins the 2016 Eurovision Song Contest in Stockholm, Sweden.
- Romania is expelled from this year's Eurovision Song Contest in Stockholm, Sweden, after its national broadcaster, Romanian Television (TVR) failed to pay outstanding debts dating back to 2007. Ovidiu Anton was due to perform the song "Moment of Silence" at the contest.
- All four members of the British indie band Viola Beach and their manager die in a road accident near Stockholm, Sweden.
- Sweden's national security service "Sapo" are questioning terrorist suspect Moder Mothama Magid, a 22-year-old Iraqi, who is accused of planning to launch a terror attack on the Swedish capital Stockholm.