Etah: Nine persons were injured in a clash between two groups over land dispute at Vidirika village in this district, police said today. The incident occurred yesterday when Ram Babu and Ganga Singh had an argument over a land dispute which led to a clash between two groups, they said. The nine injured, including Ram Babu and his son Raju, were admitted to a hospital here, they said. FIRs have been registered on complaints from both sides, although, no arrests have been made so far, police added.