Syrian talks to continue, may produce joint document: source

ASTANA (Reuters) - The first day of indirect talks in Astana between the Syrian government and rebels has given grounds for­ cautious optimism about potential ­progress, a source close to the talks told Reuters on Monday. The guaran­tor states - Russia, Turkey and Iran - are expected to continue talk­s and work on a possible joint document ­on Tuesday, the source said. (Reporting by Raushan Nurshayeva; Writing by Olzhas Auyezov; Editing by Catherine Evans)