 The report sparked outrage in Greece, with opposition parties accusing the government of tolerating "US interference" in the UN mediation process and calling for Greece's withdrawal from the negotiations.Skopje "strongly and categorically" denied all claims of the existence of a secret deal with Washington.Bulgarian Prime Minister Boyko Borisov, stated in June 2012 that names like "Northern Macedonia" would be completely unacceptable, since this geographical term would include Bulgarian territories, and more specifically the region of Blagoevgrad, giving rise to irredentist territorial claims by nationalist ethnic Macedonians against Bulgaria.