A Russian transport helicopter was shot down in opposition rebel territory in northern Syria yesterday and all five crew and officers onboard were killed, the Kremlin said. 

A fragile and limited ceasefire in the northern Syrian city of Aleppo and its surrounding countryside has been extended for the third time, for another 48 hours starting at 1am this morning, the Syrian military said yesterday.

Hundreds of Iranian troops have arrived in Syria to join a major ground offensive on behalf of President Bashar al-Assad’s government, a further sign of the rapid internationalisation of a civil war in which every major country in the region has a stake.