Hamas officially accused the Mossad of assassinating Muhammad al-Zoari, a Tunisian drone expert who worked for Hamas’s military wing, the Islamist group announced on Thursday. Zoari, who reportedly also worked for Hezbollah, was shot dead near his home in Sfax, Tunisia, in December 2016.“We in Hamas officially blame the Mossad apparatus because it is behind this operation,” Hamas Politburo member Muhammad Nazzal said at a press conference in Beirut.According to Nazzal, Mossad agents arrived in Tunisia using Bosnian passports before allegedly killing al-Zoari. The senior Hamas official also said the agents received logistical support from other security apparatuses, but did not specify any agencies or organizations. Israel has not confirmed or denied its involvement. Five suspects were detained at the time by Tunisian authorities, along with multiple vehicles, weapons and mobile devices. One Tunisian journalist said the killing was carried out by the Mossad, who had been following al-Zoari for some time, Israel's Channel 10 said.Al-Zoari, an aviation engineer and scientist, was shot three to seven times by unknown assailants in his car near his home.