Russian and Syrian jets struck the rebel-held city of Idlib in northern Syria on Sunday, military sources said, as President Bashar al-Assad vowed to crush insurgents who had swept into the city of Aleppo.

Warplanes targeted the city of Idlib in an attempt to fend off advances made by antigovernment forces that included a stunning assault on Aleppo.

The Syrian government has been fighting back against opposition forces with airstrikes after they took over large swathes of land in a lighting advance which has caused embarrassment to President Bashar Al-Assad.

Israeli aircraft struck Hezbollah weapons smuggling sites along Syria's border with Lebanon, the Israeli military said Saturday, testing a fragile, days-old ceasefire that has seen continued sporadic fire.

The Israeli military says its aircraft struck Hezbollah weapons smuggling sites along Syria’s border with Lebanon

Israeli military jets hit alleged Hezbollah weapons smuggling sites near the border crossing between Lebanon and Syria, according to officials, who allege the Lebanese militant group violated a ceasefire agreement.