De Mistura said earlier that he planned to visit Damascus and Tehran ahead of the start of a new round of Syrian peace talks.
The Syrian reconciliation talks are expected to kick off on April 11, with the government’s delegation anticipated to come to Geneva on April 14.
Earlier on Sunday, a member of the Russian delegation stated that Syrian government representatives will arrive in Geneva following the Syrian parliamentary elections due to be held on April 13.
The previous round of Syrian talks in Geneva finished on March 24. The round saw all delegations submit their settlement proposals to Syrian Envoy for Syria Staffan de Mistura, who then produced a final paper with points of convergence between the parties.
The peace talks followed a Russian-US-brokered ceasefire deal reached on February 27. On March 14, Putin ordered Russian Defense Minister Sergei Shoigu to start withdrawing most of Russia's military contingent from Syria, which had been conducting strikes against terrorist targets since late September.
