ISTANBUL, NOVEMBER 19 - The UN High Commissioner for Human Rights is "particularly alarmed by the fact that the use of live bullets" by security forces against protesters "would have caused a significant number of deaths" in the protests burst last weekend against the increase in petrol prices in Iran. This was stated by the organization's spokesman, Rupert Colville, stressing that the victims among the protesters would be "tens" according to "Iranian media and other sources".