REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE CONTENT OF THIS VIDEO, WHICH HAS BEEN OBTAINED FROM A SOCIAL MEDIA WEBSITE<br/> <br />Syrian rebels in the northern province of Aleppo on Monday (July 1st) threatened to seize two Shi'ite Muslim villages that back President Bashar al-Assad unless they surrendered to the opposition.<br/> <br />Video uploaded to a social media website purportedly showed rebels launching rockets towards the contested villages of Nubl and Zahra.<br/> <br />Reuters is unable to independently verify the content of the videos.<br/> <br />Activists say both villages had been reinforced by Assad's allies in the increasingly sectarian war, among them fighters from Iran and Lebanon's powerful Shi'ite guerrilla group, Hezbollah.<br/> <br />Another video purports to show a gathering of rebels reading a list of demands and announcing their intention to attack the two villages.<br/> <br />They went on to reveal a list of six demands, including the surrender of Assad's forces and their weapons, followe
