Jalpaiguri, May 5: The state forest department will not allow any new resort or hotel, private or government, to come up within a 10km radius of any wildlife sanctuary or national park once the surrounding areas are notified as eco-sensitive or fragile zones. Vipan Sood, the conservator of forests (wildlife), north Bengal, said a letter to this effect had come from the ministry of environment and forests and the state government was asked to take up immediate steps to declare eco-sensitive zones.