European nations and Russia have proposed rival UN resolutions that would expand the number of UN cease-fire monitors in Syria from 30 to 300.
The key difference in the texts - circulated Friday morning to the Security Council and obtained by The Associated Press - is whether there should be any conditions on the deployment of the larger observer force.
The draft proposed by Russia, Syria's closest ally, does not include any conditions.
The European draft says the expanded force would be deployed "expeditiously" after Secretary-General Ban Ki-moon notifies the council that Syria has implemented its pledge to withdraw all troops and heavy weapons from cities and towns "to his satisfaction."