Bulgarian troops were left with no food supplies, cut off from their coalition partners following the violent attacks of Shia militias against their base in Karbala.

According to military officials, the soldiers repelling the more frequenting attacks by local militant groups dispose of food reserves for about a week.

A total of 120 US troops have been sent to Karbala to reinforce the Bulgarian unit after calls for coalition assistance.

World media reported that Iraq's cities of Nadjaf and Qutts are already in the hands of the local insurgent groups.

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