<sod >Â Â  Many pilgrims were taking part in mourning rituals in the area to commemorate the killing of Prophet grandson andÂ early Shia imam in the 7th century.< eod>< sod > Many Shia pilgrims are in the city,Â taking part in mourning rituals in the area to commemorate the killing of Prophet Mohamed's grandson and early Shia imam, Hussein, in the 7th century.< eod>