BANJA LUKA (Bosnia and Herzegovina), June 26 (SeeNews) – Bosnia's Sberbank a.d. Banja Luka [BANJ:ZPKB-R-A], a unit of Austria-based Sberbank Europe, has increased its capital by 23.5 million marka ($16.4 million/12 million euro) to 62.2 million marka, the bourse in Banja Luka said on Thursday.