Also, the inability of park rangers to get to the gorillas due to the rebel occupation was cited as dangerous, as the gorillas could not receive aid. On November 25, park rangers were allowed back into the park due to terms of the peace treaty, and plan to spend a month surveying the gorillas to assess their condition. On November 23, aid efforts improved as the planned humanitarian aid corridor opened and convoys were allowed access to several previously isolated cities to begin distributing supplies. Meanwhile, vendors in a local market in Goma were arrested for trying to sell UN food supplies compromising about 1% of the UN stockpile. World Food Program spokeswoman Caroline Hutford stated that this was an expected outcome. Nkunda's motivations for the conflict were stated as a desire to protect Tutsi people from persecution by Hutus, some of whom had participated in killing Tutsis in the 1994 Rwandan genocide and had fled to the Democratic Republic of the Congo to be supported by the government. Nkunda's aspirations included fragmenting the Congo into ethnically-divided states. As of November 4, 2008, tensions remained high as commentators speculated about the involvement of Rwanda, who is said to be affiliated to Nkunda by Congolese officials. Unofficial reports by civilians stated the presence of uniformed Rwandan soldiers fighting alongside rebel forces, though Rwanda officially denied these reports. The Congolese government, meanwhile, asked allied Angola to supply reinforcements in anticipation of Rwandan activity. On November 27, 13,000 refugees were reported to have entered neighboring Uganda, fleeing the Congo situation from the Rutshuru district due to the alleged continuation of violence. As of December 9 this number had increased to over 30,000. According to United Nations spokeswoman for the United Nations High Commissioner for Refugees in Uganda, Roberta Russo, "Health, water and sanitation remain a major challenge in the camps." Neighbouring locales, such as the town of Dungu in the Orientale Province, had also been struck by violence, with as many as 70,000 people estimated in need of help by the World Food Program. Mustapha Darboe, the agency's regional director for East, Central and Southern Africa, claimed that "The suffering in Dungu has been overlooked as events further south in Goma and North Kivu have taken centre stage in recent weeks. Many thousands have been displaced and are living in fear of their children being abducted. Their situation could hardly be any worse." The UN had begun airlifting relief supplies in as of December 9.