A rebel soldier appears to fire a Russian missile at a government target inside the Menakh military airport, north of Aleppo.

Moments later the rebels rejoice when the missile strikes what is said to be a tank.

On Monday, rebels appeared to battle government forces in the sprawling Menakh airport, the last government-held airbase in the northern Aleppo province.

Reuters is unable to independently verify the content of these videos

Rebels have besieged the site for months and the latest video comes amid reports that Bashar al-Assad's forces are preparing for a major offensive on rebel-held parts of Aleppo and the surrounding area.

It also comes days after a rebel defeat after the Syrian army and Lebanese Shi'ite group Hezbollah captured the strategic town of Qusair.

The seizure reignited international debate on global commitments to arm rebel forces, who complain they are dramatically outgunned compared to Assad's troops.

The United Nations esti