(ANSA) - Foggia, October 10 - The president of the chamber of commerce of the southern Italian coastal city of Foggia on Wednesday was among those ensnared in an investigation into the illegal expansion of a large tourist resort in a national park. Authorities seized and shuttered the vast and new Il Porto resort in the Gargano National Park near Foggia on Wednesday for unauthorized construction and failure to adhere to the original approved project. Construction of the 24-million-euro resort - which extends across 70,000 square meters - began in 2005, with full building approvals, which included favorable assessments by Gargano park management and cultural asset authorities. However, the structure was transformed and expanded over the years to such an extent that it destroyed a stretch of rocky ridge and indigenous Mediterranean flora, defacing protected terrain, according to investigators. The president of Foggia's chamber of commerce, Eliseo Zanasi, was the technical director of the company that carried out the construction. Five other people also face charges in the case, including Francesco Paolo Moschella, the head of the Il Porto resort and development project, and his brother Federico Erminio Moschella, who oversaw construction.