UN mediator Staffan de Mistura on Thursday called on Moscow and Washington to push for a resumption of Syrian peace talks, which he hoped could resume next month.

De Mistura told reporters in Geneva he wanted to "ensure that we have enough, sufficient, critical mass in order to give a sufficient chance for a concrete and effective beginning of the third round of the intra-Syrian talks."

The talks "have a target date of August," de Mistura said.

(AFP)