UN special envoy Geir Pedersen (left) meets with Syria's Foreign Minister Walid Moallem in the Syrian capital Damascus. — AFP Photo

DAMASCUS — Damascus and a visiting UN envoy on Wednesday announced "progress" towards forming a body to agree on a post-war constitution for Syria.

The announcement, following talks between UN envoy Geir Pedersen and Foreign Minister Walid Muallem, was the first time that Damascus has spoken of progress towards forming the panel.

"Great progress was made towards reaching an agreement for a committee to discuss the constitution," the foreign ministry said.

Pederson in a statement on Twitter reported "good progress" and said both sides were "getting closer to reach an agreement to establish a constitutional committee".

"Looking forward to discussions with the SNC shortly," he added, referring to the commission representing the country's opposition.

Pedersen, a seasoned Norwegian diplomat who took over the job in January, arrived in Damascus on Tuesday hoping to push ahead with stalling efforts to end the eight-year civil war.

His predecessor, Staffan de Mistura, stepped down after his four years in the post ended with a year-long abortive push to form the constitutional committee.

The regime wants to amend the existing constitution, while the opposition have called for a new one.

Discussions have been bogged down in disagreements over the composition of the committee, to be made up of 150 members: 50 chosen by the regime, the same number by the opposition, and another 50 selected by the UN envoy.

Pro-government newspaper Al-Watan on Tuesday reported that a body could start work at early as September if Damascus agreed to Pedersen's list.

Last month, the US said it was time to scrap the constitutional committee initiative and come up with other ways to end the war.

Numerous rounds of UN-led peace talks have failed to end a war that has killed more than 370,000 people and displaced millions since it started in 2011 with the repression of anti-government protests.

In recent years, a parallel negotiations track led by regime ally Russia and rebel backer Turkey has taken precedence.

With key military backing from Russia, regime forces have retaken large parts of Syria from rebels and jihadists since 2015, and now control around 60 per cent of the country. — AFP