The spokesman for the main Syrian opposition delegation at the indirect peace talks in Geneva has accused the Damascus government of "procrastinating" and not engaging fully in the negotiations.

Salem Al Meslet of the Saudi-backed High Negotiations Committee says Syrian President Bashar Assad's negotiators are not serious about the indirect talks and refused to negotiate with the opposition.

The U.N. special envoy, Staffan de Mistura, is hosting separate talks with the HNC and the Syrian government team on Friday in Geneva, where negotiations got under way this week to try end the five-year war.

Al Meslet also says Syrian refugees would eventually return home, once the government stops bombing and killing civilians.

He expressed hope that Russian President Vladimir Putin would stop supporting Assad and stand with the Syrian people.