The plaque was erected by the civil society organisation called "Iniciativa Mladih Za Ljudska Prava", in the northern exit from Knin on Thursday, when Croatia celebrated Victory Day.
The plaque was set up on the common although the association has not obtained any permit, thus violating laws of the Republic of Croatia, the mayor said in her statement on Friday.
She recalled that 15 years ago, the Croatian army liberated Knin and other areas occupied by Serb rebels and reinstated the Croatian constitution and laws.