President Ghani who is in Germany for Munich conference on Friday met with key US and NATO officials including US Secretary of State Mike Pompeo, US Defense Secretary Mark Esper, the US special envoy Zalmay Khalilzad and NATO and US forces commander in Afghanistan Gen. Scott Miller, and discussed the Afghan peace process -- among other topics, according to the Presidential Palace.

In this meeting, the US defense and state secretaries stressed that the agreement with the Taliban that will be signed within the next few weeks is conditions-based, the Palace statement read.

Sources familiar with peace talks and a former Taliban member on Saturday said a reduction in violence -- on which the US and the Taliban have reached an agreement -- can lead to an unofficial ceasefire.

If reduction in violence plan implemented, the Taliban will refrain from launching suicide attacks in big cities and they will also abandon attacks on military and civilian installations and will not block the country's highways, sources familiar with the matter said.