Meanwhile, electricity returned to parts of Damascus, hours after a power cut plunged the capital and other parts of the country into darkness.
The Britain-based Syrian Observatory for Human Rights said today the government of President Bashar Assad had freed the women over the past two days. There was no immediate comment from Syrian officials, nor details on who the women are or their current location.
Lebanese officials have said a third part of the deal called for the Syrian government to free a number of women detainees to meet the rebels' demands.
The involvement of Lebanon, Syria, Turkey, Qatar and the Palestinian Authority in the deal showed the extent to which the Syrian crisis, now in its third year, has washed across the wider region.
More From This Section
Syria's crisis began in March 2011 with largely peaceful protests against Assad, and slowly turned into an insurgency and then a full-blown civil war. More than 100,000 people have been killed in the conflict, while another 2 million have sought refuge from the violence abroad.
Syria's state news agency quoted Electricity Minister Imad Khamis as saying authorities plan to have power back online to all areas within 48 hours. The government has blamed the outage on a rebel attack that it says damaged a gas pipeline that supplies fuel to power stations in southern Syria.