In April 2010, Josipović met with the Bosnian Croat Catholic archbishop cardinal Vinko Puljić and the head of the Islamic Community reis Mustafa Cerić and the three made a joint visit at the sites of Ahmići massacre and Križančevo selo killings, and paid respect to the victims. Josipović made an official visit to Bosnia and Herzegovina during which he addressed the Parliamentary Assembly, and in his speech he expressed a "deep regret" for Croatia's involvement in efforts to divide Bosnia and Herzegovina in the 1990s, resulting in the Croat–Bosniak war and suffering for many people on both sides. The presidency of the Croatian Democratic Union condemned the apology. Jadranka Kosor, the current prime minister and president of the Croatian Democratic Union, criticized Josipović and accused him of breaching the constitution. The vice president of the Croatian Democratic Union, Andrija Hebrang, contested that Josipović should have visited Bleiburg before Ahmići and Grabovica.