"We have noticed an increased number of incidents at the country's various sports arenas and believe that with the new prevailing security situation it is not safe to carry out the match at the Avicii arena with supporters from both teams present".
That's what AIK Hockey wrote on its website last Friday.
But over the weekend they have revised their decision and have now come to the conclusion that Djurgården's supporters are welcome.
"Decisive for changing the decision has been that the requirements regarding the security arrangement are now at a level that we can meet and the discussions with supporter organizations we have had have been positive and resulted in working together for a safe derby," they write on their website.
AIK has received criticism from supporters and now writes that it is being addressed.