The death of a Tunisian journalist who set himself on fire to protest economic problems in the North African nation has prompted a protest that led to clashes with police and nationwide concern.Journalist Abderrak Zorgui posted a video online before his self-immolation in the struggling provincial city of Kasserine describing his desperation and calling for revolt. He expressed frustration at unemployment and the unfulfilled promises of Tunisia's 2011 Arab Spring revolution.Authorities said Zorgui died of his injuries on Monday soon after being taken to the hospital.His actions prompted a protest on Monday night in Kasserine that degenerated into violence, with police firing tear gas to disperse protesters who blocked roads and threw stones at police. Interior Ministry spokesperson Sofiane Zaag said on Tuesday that six police officers were injured and several people arrested in the protest.A similar self-immolation - by a street vendor lamenting unemployment, corruption and repression - led to nationwide protests fueled by social media that brought down Tunisia's long-time authoritarian president in 2011. That ushered in democracy for Tunisia and unleashed similar movements around the Arab world.Zorgui's funeral was being held on Tuesday in Kasserine, which has come to symbolise Tunisia's economic problems and social tensions. Unemployment and poverty are high, and the area has struggled for years against extremists in the nearby mountains who are linked to al-Qaeda and the Islamic State group.The Tunisian National Journalists' Union called for demonstrations and a possible strike in response to the journalist's death. In a statement, it accused the state of contributing to Zorgui's death by not cracking down on corruption.* Sign up to News24's top Africa news in your inbox: SUBSCRIBE TO THE HELLO AFRICA NEWSLETTERFOLLOW News24 Africa on Twitter and Facebook.