Risbergska Skolan in Örebro was attacked by a shooter.
Not much information is being provided yet, but from indirect information, the school was a school for adults, including "Swedish for Immigrants", most people interviewed have a foreign accent and the local mosque is staying open for mourners, so it seems to indicate a xenophobic attack against immigrants, or possibly an immigrant attacking those around him (it is a man).
Eleven are dead so far and over a dozen are injured.
"[Worst mass shooting in Swedish history]" (Swedish)