Business Minister Kwasi Kwarteng says the appointment of Andrew Sabisky was "regrettable" and his views "unacceptable", adding they were not shared by Prime Minister Boris Johnson.
Mr Sabiksy resigned as a newly appointed advisor following criticism of alleged past remarks on pregnancies, eugenics and race.
Report by Alibhaiz.
Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn