Secretary-General of the United Nations Ban Ki-moon warns against attacks on demonstrators while visiting the English cities of Oxford and London. [http:--af.reuters.com-article-egyptNews-idAFLDE71120F20110202 (Reuters)] [http:--www.bangkokpost.com-breakingnews-219587-attacks-on-protestors-unacceptable ("Bangkok Post")]date=August 2019