On 17 April 2015, The Sun's columnist Katie Hopkins called migrants to Britain "cockroaches" and "feral humans" and said they were "spreading like the norovirus". Her remarks were condemned by the United Nations High Commission for Human Rights. In a statement released on 24 April 2015, High Commissioner Zeid Ra'ad Al Hussein stated that Hopkins' used "language very similar to that employed by Rwanda's Kangura newspaper and Radio Mille Collines during the run up to the 1994 genocide", and noted that both media organizations were subsequently convicted by an international tribunal of public incitement to commit genocide.

Which Sun columnist made controversial remarks about migrants to Britain in April 2015?