Blood flows at the Eid al-Adha festival

Blood flows down the street while children watch on as volunteers slaughter a cow at Daarun Najaah mosque during the Eid al-Adha festival in Jakarta.

Indonesian Muslims along with thousands others around the world are marking Eid al-Adha or 'Feast of the Sacrifice', which marks the end of the annual hajj or pilgrimage to Mecca and celebrated in remembrance of Abraham's readiness to sacrifice his son to God.