ISLAMABAD (APP) - The United Nations on Saturday revised the assistance for Internally Displaced Persons of Swat and Malakand as over a million IDPs are yet to go back to their homes. The assistance level is above our earlier estimates. We revise it from earlier US$ 543 to US$ 680 million, Humanitarian Coordinator Martin Mogwanja informed media at a news conference. So far 1.65 million people have returned to their homes with over a million still living at camps or with host communities, he added. Mogwanja said on very onset we had estimated that around 1.55 million people would displace but after the operation started the influx was much more than our estimates and went up to 2.65 million people. Moreover, he said, with IDPs facing certain problems regarding security, food, employment and other issues, more assistance would be needed to meet their post operation requirements. Though, we have so far received 68 pre cent of actual assessment that is 60 per cent of the revised assistance volume, yet much more is needed to be done, he said. Mogwanja appreciated the US$ 100 million pledge by the Saudi government for the IDPs and said it was the biggest one time pledge by any government. To a question, Mogwanja said 77,000 people displaced from Waziristan since June who had been registered were being provided assistance. We also expect 170,000 more IDPs from this area if the operation is expanded. We have set up an mergence hub for the purpose in Bhakkar district, he said. Dan Toole, UNICEF Regional Director, informed media that during his first visit to area he had felt the challenge as enormous. But in my Fridays visit to communities in Malakand Division, I observed an impressive response to the crisis from the government of Pakistan, UN agencies and local and international NGOs, he said. Now majority of the IDPs (Internally Displaced People) have returned to their homes, the next challenge is to expand our focus. We must ensure that we provide assistance not just to those who remain displaced, but also those who have returned to their homes he said. Its also crucial that we reach those who remained behind and were in too many cases unreachable by humanitarian assistance during the conflict, Toole said. Toole cited, among the key challenges now facing humanitarian efforts on behalf of children and families, the low levels of humanitarian access to previously conflict-hit areas, due to insecurity. He also emphasised the importance of ensuring equity in the distribution of assistance and an earliest possible recovery, including the reconstruction or rehabilitation of the nearly 550 schools damaged or destroyed during the conflict. He also underlined the need to provide assistance to children traumatised by the conflict. As an initial response to the return, UNICEF has expanded assistance already being provided to IDPs and the often-overstretched communities that host them. Actions taken to respond to the urgent needs of returnees - and to the opportunity to begin providing assistance to those who stayed behind - include interventions in the areas of health and nutrition; water and sanitation; education; and children protection. In order to prevent malnutrition, community-based therapeutic feeding programs have been made available in 13 Union Councils of Swat and Buner Districts and started on October 1 in all Union Councils of Lower Dir. As immediate response to get the returning children, especially the girls, back in school, we have sent nearly 18,000 school bags, 120 school tents, and 100 schools-in-a-Box to the areas of return, Toole said. Answering a question, he said new Welcome to School initiative aims to reach over 530,000 children in conflict-affected areas with an expanded series of actions to provide them temporary learning spaces where necessary; educational supplies; and special training for teachers in areas like helping children to recover from trauma and landmine-risk education. Recognising that important inroads have been made, Toole stressed that much remains to be done, and that it is essential to continue and, where possible, expand these actions to 2010.