"The information adds to the High Commissioner Navi Pillay’s concerns that serious breaches of international human rights law have occurred in Iraq, including summary executions of a large number of civilians and torture and ill-treatment of detainees.
The US and Iraqi authorities should take necessary measures to investigate all allegations made in these reports and to bring to justice those responsible for unlawful killings, summary executions, torture and other serious human rights abuses, in line with obligations under international human rights law, including the International Covenant on Civil and Political Rights to which both the US and Iraq are parties."[OHCHR]
Update 27.10.2010: Members of the European Parliament have demanded that European leaders challenge the US president, Barack Obama, over WikiLeaks' disclosures of alleged torture in Iraq. They want the issue to be raised at the EU-US summit agenda next month.
"Guy Verhofstadt, leader of the liberals group in the European parliament, said on Tuesday that the Obama administration had to investigate the "abuses" revealed by WikiLeaks.
"This will obviously be a sensitive topic for the US administration, but partners in the transatlantic alliance must be clear on common rules of engagement in times of conflict if we are to retain any moral standing in the world," Verhofstadt said
"Whilst the allegations concern actions undertaken during the previous Bush administration, it will be incumbent on the present one to investigate the abuses, pursue those complicit and lay down stricter guidelines for conduct in combat."
"The US remains a hugely important ally in terms of security. We cannot afford to allow our standards to slip so far that respect for the rule of law is ignored." [Guardian]