The tracks of the Antwerp network are in bad to very bad condition. Yesterday evening a track broke at Borsbeeksebrug. Due to that lines 4 and 9 have to drive an alternate route.
As of today line 4 is now Zwaantjes-Centraal Station (normal route is Zwaantjes-Berchem Station)
Line 9 is now Silsburg-Groenplaats via metro stations: Zegel-Astrid and Opera (normal route is Silsburg-P+R Linkeroever via metro stations: Plantin-Diamant-Opera-Meir and Groenplaats).