On 11 March 2022, the Protection Cluster released the first estimation of internally displaced persons (IDPs) in Ukraine since the military offensive started on 24th February. Estimates were based on a provisional methodology developed in consultation with OCHA, IOM, UNHCR and REACH. In the absence of credible sources of IDP data at that moment, and while the Government’s centralized registration system was not being applied, the Cluster stepped in to ensure that the preliminary estimated scale of internal displacement in Ukraine was brought to the attention of the international community.
Under the auspices of the Cluster, IOM, REACH, UNHCR and OCHA agreed to continue working together and jointly reviewing IDP figures as new data sources become available, to ensure the humanitarian community receives credible and harmonized population figures for IDPs in Ukraine.