The United States on Wednesday urged Syria's reluctant rebel and opposition groups to attend UN-mediated peace talks with President Bashar Al-Assad's regime without preconditions.
United Nations envoy Staffan de Mistura has invited the Saudi-backed High Negotiations Committee, a rebel umbrella group, to send delegates to indirect talks in Geneva.
But the group, which is meeting in Riyadh, has yet to reply and a spokesman said it is waiting for "clarifications" on the guest list for the planned dialogue.
The Committee has insisted it must be the sole opposition delegation, while the United Nations has issued invitations to other groups it sees as regime opponents.
