LISBON, Portugal (AP) — Officials in Portugal have ordered an investigation into claims that one of the country's most cherished historic monuments was damaged during the shooting of a film by director and former Monty Python star Terry Gilliam.

The General Directorate for Cultural Heritage says it is looking into a report by public broadcaster RTP that alleged the recent location shoot for "The Man Who Killed Don Quixote" left behind chipped masonry, broken roof tiles and uprooted trees at the 12th-century Convent of Christ in Tomar, in central Portugal.

The convent was a stronghold of the Knights Templar and is classified as a world heritage site by the United Nations.

Officials at the Portuguese production company used at the location shooting, Ukbar Filmes, were not immediately available for comment.