At least eight people, including six policemen, were killed in a landmine blast triggered by suspected rebels in India's central state of Chhattisgarh on today, a news report said. The blast, which targeted a truck carrying the policemen, occured in the Metaguda area in the southern Dantewada district, 500 kilometres south of state capital Raipur, PTI news agency reported. The truck's driver and his helper were also killed in the explosion, police told the PTI. Two other policemen were injured in the blast were admitted to a state-run hospital in the district. Additional forces have rushed to the scene and have launched operations to hunt the rebels, police said.