PARIS, May 29 (Xinhuanet) -- Paris airport authority (ADP) announced Saturday a memorial ceremony for four victims in the Sunday's roof collapse of the Terminal 2E at Paris' Roissy-Charlesde Gaulle airport.

    The ceremony will be held on June 2 at Roissy-Charles de Gaulleairport, grouping families of the four victims, a Chinese man, a Chinese woman, a Lebanese woman and a woman whose nationality is still unknown, said an ADP spokesman.

    The ADP "will do everything possible for the families of the victims to be able to visit the site (of the accident) if they wish to do so," the spokesman added.

    The four families will be paid damages before insurance companies submitting their final report, said Pierre Graff, head of the ADP, in an interview with the French Daily Le Monde on its weekend edition.

    Graff has asked France's civil aviation authority DGAC to move a number of airlines to Orly, another airport in south Paris, in order to help lighten pressures on Charles de Gaulle airport as the busy summer season gets underway.

    "Such a solution would help us get through summer more easily,"he said, "Orly has 250,000 authorized slots but in 2003 only 203,000 were used."

    The activities transfer would meet some opposition from people who live near the airport, Graff added.

    The cause of the collapse is still under investigation. Graff ruled out "a single cause".

    The architect of the terminal, Paul Andreu, said on Friday thathe could not explain how the structure collapsed.

    Andreu, 65, an internationally-renowned architect, has designedmore than 50 airports including all the terminals of Charles de Gaulle airport. His works brought him the nickname "architect of airports."

    He left the ADP on November 30, 2002 for better concentrating himself in the construction of the Oriental Art Center in Shanghaiand especially the National Grand Theater in Beijing near Tian'anmen Square, which is under construction. Enditem