Vienna – A water pipe break in the area of the source square (District Favorite) caused extensive disorders in the Vienna tram operation early Wednesday morning. Lines 11, 6, O and the replacement line E1 set up for U1 construction work were affected. A rail replacement traffic by bus was set up between Reumannplatz and Otto-Probst-Platz, the Viennese lines said. An end of the fault was not foreseeable for the time being.