Updated

The Latest on the conflict in Syria (all times local):

3:20 p.m.

Turkey's president says Turkish troops and Ankara-backed opposition fighters have encircled the main city in a Syrian Kurdish-held enclave in northwest Syria and are on the verge of entering it.

In a speech in Ankara on Friday Recep Tayyip Erdogan said Turkish forces, which took control of the key town of Jinderes on Thursday, were 6 kilometers away from the city of Afrin.

"Afrin (city) is encircled. God willing, we are may enter Afrin (city) any moment," Erdogan said.

Erdogan reiterated Turkey's resolve to advance to Manbij — a region east of Afrin, where the U.S. has a military presence — and other Syrian Kurdish held locations east of the Euphrates river, once the offensive on the enclave is completed.

Ankara considers the Syrian Kurdish fighters "terrorists" and allied with Kurdish insurgents fighting inside Turkey.

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2:50 p.m.

Relief workers used a brief lull in Damascus' embattled rebel-held suburbs to try and deliver remaining aid left over from a mission earlier in the week but were interrupted by renewed violence shorty after their team entered eastern Ghouta on Friday.

The International Committee of the Red Cross said a convoy of 13 trucks with supplies, including food parcels for 12,000 people, went into Douma — the largest and most populated town in the rebel-held eastern Ghouta, on the edge of the Syrian capital — earlier in the day.

Rami Abdurrahman who heads the Britain-based Syrian Observatory for Human Rights said Douma was shelled before the convoy went in.

Once the relief workers arrived, Syrian government forces shelled the outskirts of the town, he said.

Reports were sketchy and it was not immediately clear if the ICRC had offloaded all the aid.