GENEVA — A growing body of evidence collected by UN investigators points to the involvement of senior Syrian officials, including President Bashar Assad, in crimes against humanity and war crimes, the UN’s top human rights official said Monday.
The statement by Navi Pillay, who heads the UN Office of the High Commissioner for Human Rights, adds to the pressure for quicker action on Syria ahead of a key peace conference planned for Geneva in January. The conference, brought on by combined UN, US, and Russian diplomacy, would for the first time bring the Assad government and opponents together for face-to-face negotiations.
‘‘As we look around the world at the end of 2013, we see examples of situations where that readiness of the international community to act in time is already being sorely tested,’’ Pillay told a news conference that touched on trouble spots around the world.
‘‘In addition to Syria, where the scale and viciousness of the abuses being perpetrated by elements on both sides almost defies belief, the situation in the Central African Republic is deteriorating rapidly, and the alarm bells are ringing loud and clear.’’
Pillay said the Syrian abuses — suspected massacres, chemical attacks, torture, rape, and a litany of other horrors — are being well documented by an expert UN panel of investigators.
‘‘They’ve produced massive evidence,’’ she said. ‘‘They point to the fact that the evidence indicates responsibility at the highest level of government, including the head of state.’’
Faisal Mekdad, Syria’s deputy foreign minister, was dismissive of Pillay’s remarks. ‘‘She has been talking nonsense for a long time and we don’t listen to her,’’ he said in The Hague.
Pillay said the lists of suspected criminals are handed to her on a confidential basis and will remain sealed until requested by international or national authorities for a ‘‘credible investigation’’ and then possibly used for prosecution.
Pillay said she worries about striking the right balance in determining how long to keep the information secret. The lists ‘‘rightly belongs to the people who suffered violations,’’ she said, but they also must be kept sealed ‘‘to preserve the presumption of innocence’’ until proper judicial probes can be done that could lead to trial.
Pillay and the four-member UN panel on Syria war crimes chaired by Brazilian diplomat and scholar Paulo Sergio Pinheiro has previously said Assad’s government and supporters and the rebels who oppose them have committed heinous war crimes during the nearly 3-year-old civil war in Syria that has killed more than 100,000 people.
But this time, Pillay specifically referred to the president — though she was careful to say she hadn’t singled him out as a possible suspect on the secret lists.
Any prosecution before the International Criminal Court at The Hague appears to be a long way off because Syria is not a member of the court, so it would require the UN Security Council to refer the matter.
The 15-nation council did so once before in the case of Sudan, in 2005, but would be unlikely to do so in Syria’s case because its key ally Russia is one of the council’s five permanent members that wield a veto.
Also Monday, UN Secretary General Ban Ki-moon reported progress toward the elimination of Syria’s chemical weapons but said meeting the mid-2014 deadline under the ‘‘volatile’’ security conditions in the war-torn country would require an ‘‘unprecedented effort’’ by the international community.
In a letter to the Security Council, Ban also expressed concern about the safety of staff from the United Nations and the chemical weapons watchdog overseeing Syria’s planned destruction of chemical weapons.
He said ‘‘Syrian authorities are being encouraged to consider alternative options to ensure the safety and security of inland transportation for the chemical material.’’
Ban also said ‘‘full clarity’’ on plans to remove the chemical material from Syria and destroy it elsewhere ‘‘is critical, including the location for destruction.’’
Pillay said Syria and North Korea — the two countries being investigated by a UN investigative panel — represent two of the world’s worst human rights violations, but she also cited concerns with Central African Republic and Bangladesh.
Other places that require the world’s attention, she said, are the large-scale expulsions of migrants from Saudi Arabia, the high number of migrant laborer deaths building World Cup stadiums in Qatar, and continuing political exploitation of xenophobia and racism in Europe and other developed regions.