Three sets of international talks, spurred by Russia's military intervention on behalf of the regime, have been held since mid-November. It made no statement about the future of President Assad and his leading officials. A statement from the head of the team, former Prime Minister Riad Hijab, emphasized preconditions for any talks with the regime. These include release of detainees from regime prisons, ceasefires with a halt to bombardment by Russian and Syrian air forces, and access to humanitarian aid. Meanwhile, Iran has shown concern over the growing attention to the crisis and the effect on the Assad regime.