Juba — The Minister of Finance and Economic Planning, Mr. Aggrey Tisa Sabuni met Wednesday the Deputy UN Special Humanitarian Coordinator Toby Lanzer, who said after the meeting they discussed the framework of the United Nations programmed activities and key challenges facing the people of south Sudan in terms of education, food security and public finance management. He said deteriorating humanitarian situation in other part of country was a big challenge, pointing out that the people of South Sudan aspire for sustainable peace to enable them focus on building the country. Lanzer said he was looking forward to working with the ministry of Finance and other government institutions across the country.