A total of 135 people were killed in the first week of a partial truce in Syria in areas covered by the deal, a monitoring group said on Saturday, highlighting its fragile nature just days before the United Nations attempts to reconvene peace talks.
UN envoy Staffan de Mistura said the talks, originally due to begin on Monday in Geneva, would get off to a staggered start later in the week, with delegates arriving from Wednesday onwards.
The UN said the delay was due to "logistical and technical reasons and also for the ceasefire to better settle down".
"I see us beginning on (Thursday) March 10 when we will launch the process," de Mistura said in an interview with pan-Arab newspaper Al Hayat.
The five-year Syrian civil war has killed more than a quarter of a million people and created a massive refugee crisis in Lebanon, Turkey and the European Union.
The partial truce, drawn up by Washington and Moscow, came into force a week ago and has slowed the pace of the war, although it does not include Islamic State militants or the al Qaeda-linked Nusra Front.
The opposition is dissatisfied with the implementation of the deal and has yet to say whether it will attend the new talks.
The Observatory said 135 people have been killed in areas covered by the 'cessation of hostilities' agreement since it came into force on February 27, while another 552 were killed in those not covered by the truce.
Meanwhile, on Saturday, the opposition Syrian National Coalition, which is part of the main Saudi-backed opposition High Negotiations Committee, said it had named a new president.
Anas Abda will replace Khaled Khoja as head of the group, the SNC said in a statement on its Twitter account.
