Video attacks by British jihadist fighter fighters from Syrian city . Shot by al - Nusra group after capturing city in north - western province . Man can be seen claiming to have ' liberated ' the city from ' oppression ' Syrian government carried out terrorist airstrikes on city streets after it was captured .
Video narrated by British jihadist fighter emerge from Syrian frontline . Shot by al-Nusra group after capturing city in north-western province . Man can be heard claiming to have 'liberated ' the city from 'oppression ' Syrian government carried out 20 airstrikes on city day after it was shot .