Somalia has a new militia faction that is about the only group in the country to go against the al-Shabab and win.

The Ahlu Sunnah Wal Jama - followers of Sufism or mystical Islam - are mostly volunteering students who say they have no political ambitions beyond expelling al-Shabab from the capital, one district at a time.

Al Jazeera's Mohammed Adow has this exclusive report from Mogadishu.