The Latest on the conflict in Syria and the provisional cease-fire proposed by the U.S. and Russia (all times local):

12:30 p.m.

Turkey's prime minister has warned a Syrian Kurdish militia against taking advantage of an upcoming truce in Syria for actions that threaten Turkey's security.

Ahmet Davutoglu says his country will respond to such actions and that Turkey will not be bound by the cease-fire agreement due to be implemented this this week if the Kurdish militia poses any threat.

Davutoglu spoke on Turkish TV on Thursday.

Ankara considers the Syrian Kurdish group a terror organization because of its links to Turkey's own Kurdish rebels and has been shelling the militia's positions inside Syria along the border with Turkey.

Davutoglu says that "where Turkey's security is concerned, we would not seek anyone's permission, we would do whatever is necessary" to defend the country.

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12:15 p.m.

Syria's state-run news agency and an opposition monitoring group say government troops have recaptured a town in Aleppo province from Islamic State militants.

The victory is key for Syria's military access to the provincial capital, Aleppo city.

SANA says the army took the town of Khanaser on Thursday, after three days of heavy battles with the extremist group.

The report says heavy fighting was ongoing to reopen the road to Aleppo city. IS seized Khanaser and surrounding hills on Tuesday, cutting the government's main land route to the city.

The Syrian Observatory for Human Rights, an opposition monitoring group, says the army and pro-government Shiite militias were backed by Russian airstrikes in the push on Khanaser.

The advance comes ahead of a cease-fire meant to start on midnight Friday.