AT least six people are dead after a police officer opened fire outside a synagogue in Tunisia. The unnamed National Guard member reportedly turned his service weapon on two colleagues before blasting four worshippers close to the Ghriba synagogue. GettyAt least six are dead after the horror shooting rampage in Tunisia[/caption] The attack took place during an annual pilgrimage to the island, which attracts thousands of Jewish visitors from Europe and Israel. The gunman, who has not been identified, was then shot dead by security guards. Among those killed were two Jewish cousins – one French and the other Israeli-Tunisian – along with one police officer who died at the scene and a second police officer who died in hospital today. Eight others were injured – four police officers, including one in a critical condition, and four civilians.