People carry flowers, a wooden cross and a portrait of assassinated prominent Kosovo Serb politician Oliver Ivanovic as they accompany the coffin of Ivanovic in Mitrovica on January 17, 2018 as investigators were probing the killing of a prominent Kosovo Serb politician, which observers warned could worsen tensions in the volatile region. Oliver Ivanovic, 64, was shot dead from a car Tuesday morning as he arrived at the headquarters of his party in the flashpoint town of Mitrovica in northern Kosovo. / AFP PHOTO / SASA DJORDJEVIC