Clashes between the Republic of Kosovo and ethnic Serbs in northern Kosovo began on 25 July 2011 when the Kosovo Police crossed into the Serb-controlled municipalities of North Kosovo, in an attempt to control several administrative border crossings without the consultation of either Serbia or KFOR/EULEX. Though tensions between the two sides eased somewhat after the intervention of NATO's KFOR forces, they continued to remain high amid concern from the European Union, who also blamed Kosovo for the unilateral provocation. On 19 April 2013, an agreement was signed in Brussels between representatives of Kosovo and Serbia. The 15-point document granted devolved powers to North Kosovo regarding economic development, education, healthcare and urban planning, and a number of mechanisms that allowed a certain degree of autonomy in justice, policing and electoral matters.