Libyan members from the country's two rival parliaments say the signing of a U.N.-sponsored deal, which would form a unity government, has been delayed for a day.

Hamid al-Bandag, a member in the internationally recognized parliament in the eastern city of Tobruk, and Saad Abu-Sharada, a member from the Islamic militia-backed General National Congress in the capital Tripoli, say the deal will be signed Thursday.

The U.N. deal has detractors on both sides. Abu-Sharada says the two heads of parliament are meeting Tuesday in Malta to forge a separate deal without U.N. involvement.

"It's not clear whether that meeting will actually produce a government whereas the U.N. signature will actually endorse a government that has been already proposed," said Mattia Toaldo, policy fellow on the European Council on Foreign Relations.