BA has also cancelled the 7.05 flight (BA389) on 27th Oct.
Basically all airlines using Aviapartner cancelled all flights from and to BRU, today. The airport landside departure area look quite messy with a giant queue for the shared aviapartner's desks; I also spotted an angry BA customer's twitter - about the lack of any BA representatives - reported by an online newspaper.
Maybe some mod could change the title in "BRU Aviapartner on strike - 25/26 Oct" as it involves not only baggage handlers?