Erbil, Nov 20 (ANI): Spiritual leader Sri Sri Ravi Shankar stepped up relief work for Yazidi refugees trapped in Erbil town of Iraq, following an insurgency by Islamic State militants. The International Association for Human Values (IAHV), a sister concern of Sri Sri Ravi Shankar's The Art of Living has teamed up with local non-governmental organisations (NGO) in Iraq for relief operations. Shankar raised concern about conflicts among different communities in Iraq and emphasised on ways to build trust among them. Thousands of Yazidis have been shot, buried alive or sold into slavery by Islamic State militants, who regard them as devil-worshippers.