<sod >Seven Iranian nationals returning from the Arbaeen ceremony in KarbalaÃÂÃÂ were among the victims, Iraqi security officials said on Thursday.< eod>< sod > Only ten Iraqi nationals were among the victims, and many wereÃÂÃÂ Iranian visitorsÃÂÃÂ returning from the Arbaeen ceremony in Karbala, Iraqi security officials said on Thursday, although details on the identities of the deadÃÂÃÂ are still emerging.< eod>