CLEAN : UN rights chief demands justice after migrant 'mass murder

The transcript discusses a news release by the UN High Commissioner for Human Rights, Zeid Raad Al Hussein, urging Egypt and other states to bring to justice the people smugglers responsible for deliberately sinking a boat, resulting in the deaths of 300-500 refugees and migrants in the Mediterranean. The act is described as a crime that should not go unpunished, and if survivor accounts are credible, it amounts to mass murder.

What is the implication of the survivors' accounts according to the High Commissioner?

What term does the High Commissioner use to describe the situation in the Mediterranean?