Index celebrate the 20th year of their awards with an online ceremony hosted by BBC journalist Timandra Harkness. The winners are Russian artist Yulia Tsvetkova (arts); Turkish lawyer Veysel Ok and Bahraini activist Sayed Ahmed Alwadaei (campaigning); Arab Center for the Advancement of Social Media, also known as 7amleh (digital activism); and OKO Press (journalism).