In Chattisgarh, 7 persons including five policeman were severely injured in a landmine blast by the naxalites today. The injured have been admitted to the hospital. According to police sources, the six member police team alongwith 19 prisoners were returing to jagdalpur after attending the course in Konda Gaon this afternoon, when the naxalite triggered a powerful landmine near Jaganala under the Kondagaon district. The vehicle in which they were travelling was badly damaged causing severe injuries to the victims.