The US envoy for Afghan peace process Zalmay Khalilzad has expressed disappointment over the collapse of a planned meeting between Taliban and a group of Afghan politicians in Qatar.

In a tweet message, he said the development has exposed some of the deep divisions hampering efforts to end the war in Afghanistan.

The Special representative said "I urge all sides to seize the moment and put things back on track by agreeing to a participant list that speaks for all Afghans.”

Meanwhile, President Ashraf Ghani accused the Qatari authorities for the cancellation of talks.

(1/2) I'm disappointed Qatar's intra-Afghan initiative has been delayed. We're in touch with all parties and encouraged that everyone remains committed to dialogue and the #AfghanPeaceProcess. pic.twitter.com/iCaHqf8vyw

— U.S. Special Representative Zalmay Khalilzad (@US4AfghanPeace) April 18, 2019

(2/2) Dialogue is and always will be key to a political roadmap and lasting peace. There is no alternative. I urge all sides to seize the moment and put things back on track by agreeing to a participant list that speaks for all Afghans. I stand ready to help if our help is needed

— U.S. Special Representative Zalmay Khalilzad (@US4AfghanPeace) April 18, 2019