Russia, Turkey and Iran have vowed to secure the territorial integrity of Syria during a trilateral summit in Ankara.
According to a joint statement released after the summit, the nations have called for a lasting ceasefire between the conflicting parties, in talks on the Syrian crisis.
The three countries also stressed their joint determination to speed up efforts to ensure calm on the ground and protect civilians in
Syria after talks on the future of the country.
The summit brought together two countries which have been Syrian President Bashar al-Assad's most forceful supporters, Iran and Russia, and one of his strongest opponents Turkey.
Co-operation between the rival camps raised hopes of stabilising Syria after seven years of conflict, in which 500,000 people have been killed with half the population displaced.