Kurdish-led fighters and Turkish-backed forces clashed sporadically on Sunday in northeastern Syria amid efforts to work out a Kurdish evacuation from a besieged border town, the first pull-back under the terms of a US-brokered cease-fire.
Turkey said one of its soldiers was killed in the day's violence.
The planned evacuation of Kurdish fighters and civilians from the town of Ras al-Ayn would open the way to a pull-out of the fighters from a broader swathe of territory along the border, a senior official in the Kurdish-led forces told the Associated Press The official, Redur Khalil, said Saturday evening that the evacuation could take place Sunday if there were no new problems.
Both sides accuse each other of repeatedly violating the three-day old cease-fire.
Turkey's Defense Ministry said the soldier was killed in a Kurdish attack with anti-tank weapons and small arms fire near the border town of Tal Abyad.
That brought the Turkish military's death toll to seven soldiers since it launched its offensive against Kurdish-led fighters in northeast Syria on October 9.
The Kurdish-led Syrian Democratic Forces said Turkish troops and their allied Syrian fighters have continued their offensives the past 24 hours, forcing its fighters to retaliation.
It said 16 SDF fighters had been killed and three wounded in Turkish attacks around the border town of Ras al-Ayn and nearby villages.
Ras al-Ayn, under siege by Turkish-backed fighters, has been the scene of continual fighting since the cease-fire came into place on Thursday night.
Khalil told the AP that the force had reached understandings with the Americans to evacuate its fighters from the town from the start of the cease-fire but the siege had delayed the plans.
Turkish officials have denied they were preventing the withdrawal of any fighters.
On Saturday, medical convoys were able to enter for the first time into neighbourhoods still in the hands of the Kurdish fighters, delivering medical supplies and bringing out 30 wounded and four dead.
Khalil said the full evacuation could follow the next day unless there were new delays.