Some buses, as well as Red Crescent vehicles, reached the entrance to the villages.
The coalition of forces fighting for the government of President Bashar al-Assad are demanding people to be allowed to leave the two villages in exchange for allowing evacuations of rebels and civilians from east Aleppo.
A burnt car is pictured in a rebel-held sector of eastern Aleppo
Several buses en route to evacuate ill and injured people from the besieged Syrian villages of al-Foua and Kefraya were attacked and burned on Sunday, the Syrian Observatory for Human Rights and Syrian state television said.