A U.N.-brokered peace conference for Yemen scheduled to take place later this week appeared in doubt Monday with Yemeni officials saying the talks had been postponed.
There was no immediate public confirmation from the U.N. that Thursday's meeting would be delayed.
Yemen's President Abdu Rabu Mansour Hadi, who fled to Saudi Arabia two months ago, has demanded Houthi rebels abide by a U.N. Security Council resolution and withdraw from the territory they have seized before the talks can proceed.
Yemeni officials on Monday cited those demands and described the conference as indefinitely postponed.
U.N. Secretary-General Ban Ki-moon announced the talks last week, urging both sides to participate without any preconditions and to resume working toward a political resolution to the country's crisis.