21 November 2020, Colombia, Bogota: Riot police clash with protesters who take part in a demonstration at The National University of Colombia against the social and economic policies of Colombian President Ivan Duque. Photo: Chepa Beltran/VW Pics via ZUMA Wire/dpa Chepa Beltran/VW Pics via ZUMA W / DPA 21/11/2020 ONLY FOR USE IN SPAIN