Afghanistan, Sept. 17 -- The Taliban's Spokesman Mohammad Naeem Wardak said Wednesday in Doha the group will not agree to a ceasefire unless the main cause of the war is discussed on the peace 'negotiating table', according to sources.

While the Taliban claim to have reduced violence in Afghanistan since beginning of the peace process, the Afghan government said the group has intensified war throughout the country amid peace talks, which is "unacceptable".

"It does not make sense to end 20 years of war in one hour," Wardak told TOLOnews reporter Karim Amini in Doha. "In our perspective, it will be logical to discuss the main aspects of the problems and the war and then finalize a ceasefire so that the problem is resolved permanently."