(ANSA) - SKOPJE, JUNE 15 - In North Macedonia the opposition harshly criticized the Social Democratic prime minister Zoran Zaev, inviting him to resign and hold early elections since he failed to achieve a date to start membership negotiations with the EU. Zaev was criticized after his visit to Berlin in recent days. Chancellor Angela Merkel said that the German Parliament would rule no earlier than September with regard to the beginning of negotiations between Skopje and Brussels. Zaev, after his talks with the chancellor, said that the negotiations with the EU would begin by the end of the year. The president of the EU Council, Donald Tusk, in recent days spoke about a postponement of the beginning of the negotiations with Skopje, underlining that not all EU member states are ready to make a decision with regard to this issue. (ANSA).