CRC/C/COD/CO/3-5 completion of schooling, including, inter alia, direct and indirect costs, early marriage and persisting zones of insecurity; (c) Create vocational education and training programmes for children, including children who have dropped out of primary or secondary school; (d) Eliminate differences regarding access to schools and ensure that all children in its territory, both in urban and rural areas and from all socioeconomic backgrounds, have access to free education of adequate quality; (e) Improve the quality of teaching by, inter alia, ensuring that teachers receive appropriate training and can upgrade their skills further through in-service training, and that they receive adequate salaries that are paid in a timely manner; (f) Implement its plans to build additional schools and increase expenditure in the education sector, including on school equipment and infrastructure, in particular with regard to access to potable water and adequate sanitation facilities, and ensure that transport services are available to children to facilitate access to schools; (g) Implement the existing laws and regulations that prohibit attacks on and occupation of schools by the military and take measures to bring those responsible to justice; (h) Promote early childhood education and take steps to provide children in all regions with access to such education. H. Special protection measures (arts. 22, 30, 32, 33, 35, 36, 37 (b)-(d) and 38-40) Refugee and internally displaced children 41. In view of the fact that large numbers of children continue to be internally displaced owing to the armed conflict in the eastern part of the country and the significant numbers of refugees arriving from neighbouring countries, the Committee reiterates its previous recommendation (see CRC/C/COD/CO/2, para. 75) that the State party continue and strengthen its efforts to ensure that all refugees and displaced persons, particularly children, are provided with adequate and appropriate assistance, including food, medical and psychological care and access to education, and also that it seek the support of and cooperation from international organizations, including the Office of the United Nations High Commissioner for Refugees. The Committee recommends that the State party establish a coherent database and national programmes for refugee and internally displaced children, with a view to ensuring full protection of their rights. Economic exploitation, including child labour 42. Given that large numbers of children, including indigenous children, continue to be exploited in the extractive industries in extremely hazardous conditions, mainly in the east of the country, with high risk to their lives, health and development, as well as in the informal sector, the Committee urges the State party to eliminate all forms of exploitation of child labour, especially in extractive industries, and take measures to investigate, prosecute and punish those who are responsible, as well as raise public awareness of the harmful effects of such labour and child labour in general on children’s health and development. 13