The UN envoy to Yemen Ismail Ould Cheikh said on Sunday the Yemeni government and factions including the Houthi militants are responding positively to the UN call for talks in Geneva.
The government and the Houthi group agreed to attend the talks which will kick off on June 14.
A ceasefire is expected to announced coinciding with the talks.
Cheikh told Aljazeera TV the UN is exerting major efforts to ensure the withdrawal of armed groups from Yemeni cities in order to announce a new ceasefire.
There are discussions on the possibility to send international monitors, not forces, to oversee the withdrawal of armed groups from cities and their full adherence during the ceasefire, he said.
He said the situation especially in Aden, Taiz and Dhali is very difficult because no sufficient aid reached people in these cities during the recent ceasefire.
Yemen has been experiencing a humanitarian catastrophe for more than two months amid persistent lacks of supplies including fuels, cooking gas and foodstuffs due to the conflict.
The Houthi militants and the Saudi-led Arab coalition reportedly violated the ceasefire which ran during May 12-17.
The talks in Geneva will be in line with the Gulf Initiative for power transfer which was signed in 2011, the outcomes of the national dialog conference which ran during March 2013 and January 2014 and the UN resolutions over the transition process in Yemen, he said.
Moreover, he affirmed that the Riyadh conference, held May 17-20 and attended by most of factions, should pave the way for productive Geneva talks that must engage all factions.
The Houthis boycotted the Riyadh conference on grounds it was held in Saudi Arabia which was not a neutral host.
Cheikh's remarks were given amid escalating violence in Yemeni cities and on the border with Saudi Arabia.
The clashes between the pro-government and pro-Houthi forces continued Sunday coinciding with Saudi-led airstrikes against the Houthi militants in several cities including the capital Sanaa.