Four people were injured in a leopard attack at Chandajhar village under the Katarniaghat wildlife sanctuary here, Forest Department officials said Saturday. The injured were identified as Ram Singar (68), Ram Singh (42), Avdhesh (40) and Anil (32), they said. According to Field Director Dr Ramesh Pandey, the leopard had attacked Singar outside his house in the Kakraha range of the sanctuary Friday morning. "The three others were injured while rescuing him," he said. As the villagers chased the leopard, it entered a house, Pandey said, adding that a team of the Forest Department trapped the leopard after tranquilising it. The injured have been admitted to a local hospital for treatment. Pandey said the leopard would be released in the jungles of Dudhwa after medical examination.