OSCE Chairperson-in-Office and Secretary-General discuss Karabakh issue 

Minister for Foreign Affairs of Sweden, Chairperson-in-Office of the OSCE Ann Linde, and OSCE Secretary-General Helga Maria Schmidt have discussed the important topics on Ukraine and Nagorno-Karabakh, and other security challenges, Report informs, citing the official Twitter page of the OSCE Chairperson-in-Office.