A war monitor, the Syrian Observatory for Human Rights, said the insurgents led by Hayat Tahrir al-Sham seized control of Aleppo International airport, the first international airport to be controlled by insurgents. The fighters claimed they seized the airport and posted pictures from there.

Insurgents have breached Syria's second-largest city, Aleppo, clashing with government forces, according to a Syria war monitor and fighters.

Syrian rebels launched a surprise attack on Saturday and quickly advanced through several provinces in the north and northwest of Syria, including the city of Aleppo, the country’s second largest city.