Under its special demolition drive the Lakes and Waterways Development Authority today demolished four illegal constructions/structures at Brein Nishat Laam raised by some unscrupulous persons in violation of rules under the garb of prevailing situation.The authorities have warned the residents living in the LDA jurisdiction not to indulge in illegal construction activities or dumping the construction material in the restricted areas without permission. The LAWDA will continue with demolition of illegal construction in the areas.