The last buses meant to evacuate revels and civilians from Aleppo have been delayed by 24 hours, Syrian activists said.
Some 60 buses to carry the remaining 3,000 evacuees are waiting to leave Aleppo, the British-based Syrian Observatory for Human Rights said.
The Observatory also says 21 buses are waiting to evacuate the sick and wounded from the rebel-besieged Shiite villages of Foua and Kfarya as part of the cease-fire deal reached last week.
Ward Furati, spokesman for Aleppo's Fastaqim rebel faction, says the fighters "won't leave until security of all the civilians has been fully guaranteed."
Tens of thousands of civilians desperate to leave Aleppo were left stranded for 48 hours over the weekend after a ceasefire deal broke down.
Dubbed the People's Convoy, aid workers intend to take medical supplies to a new children's hospital in Syria.
Watch all of ITV News correspondent Dan Rivers' reports on the end of the battle for Eastern Aleppo and the evacuation from the city.