The unabated illegal felling of valuable trees is threatening the existence of Dibru Saikhowa, a biosphere reserve in Tinsukia district. Sources said that mediapersons yesterday recovered 25 logs which have been illegally felled and kept hidden in Kaliapani ghat of river Guijan near Natun gaon under Guijan PS some 10 kms away from Tinsukia. The local people have alleged that the logs are illegally brought from Dibru Saikhowa and Dangari and have been kept concealed under water hyacinth. The sources further informed that by bribing the forest and police officials the smugglers transship the illegal consinement of logs to different destinations. Talking to the Sentinel DFO Aniruddha Dey said that due to limited security staff it is difficult to manage a huge area of 340 sq km of the park. Today a team of forest staff under Tinsukia range seized the smuggled logs from Maguri Bill, informed DFO Wildlife Tinsukia, Division.