Syria state media say government troops are battling insurgents inside the country's largest city Aleppo for the first time since 2016.

The push into Aleppo followed weeks of simmering low-level violence, including government attacks on opposition-held areas. Turkey, which has backed Syrian opposition groups, failed in its diplomatic efforts to prevent the Syrian government attacks ...

Rebel forces opposing President Bashar al-Assad have launched their biggest offensive in years this week, controlling a majority of Syria's second city of Aleppo according to a monitor.Government forces offered little resistance,