Benin President Thomas Boni Yayi, mediating in post-coup talks in Burkina Faso, promised there would be some "good news" emanating from the negotiations on Sunday.

"All the players will come together tomorrow morning to issue the good news to the whole world," Boni Yayi said after talks Saturday in which he and fellow mediator Macky Sall, the Senegalese president, spoke to those on both sides of this week's coup.

Earlier, officials said the mediators were seeking the return of interim leader Michel Kafando, who has been placed under house arrest by the coup leaders.