A campaign over the 49 workers killed during the building of the airport and other related projects yesterday took its protest to the passenger terminal. The Airport Authority said it would not attempt to stop the demonstration, describing the building as a 'public place'. An authority spokesman said: 'We're not interested in stopping protests as long as they don't interfere with the passengers.' The Coalition on Workers' Rights arranged an exhibition, a protest and handed out leaflets as part of its campaign for compensation for the 49 workers killed and 7,000 injured in the project. It has drawn up a map analysing where the deaths occurred - but is demanding a proper study of the casualties and steps to cut the accident rate on construction projects which is much higher than in developed countries. The group is also campaigning for a memorial to the dead. Coalition representative Choi Kin-shing, an officer of the Hong Kong Catholic Commission for Labour Affairs, said that apart from a few problems when they arrived, when some airport security staff tried to prevent them handing out handbills, the event had gone smoothly. He said 5,000 leaflets were handed out in a few hours. The biggest loss of life building the airport was in June 1996, when six workers were killed as a Rambler Channel bridge platform crashed 20 metres to the ground. The principal contractor, Dragages et Travaux Publics-Penta Ocean Construction, was fined $105,000. The authority spokesman said the question of a memorial or monument 'is being looked at'. Other groups have staged protests in the passenger terminal. One group involved workers working for a major subcontractor who claimed their wages had not been paid. 'If they get out of hand we might ask them to move on. But if it's a peaceful protest we're generally quite tolerant,' the spokesman said.