Posters are to be put up in more than 80 McDonald's restaurants to help in the search for an 11-year-old schoolgirl missing since last Wednesday. Primary Six student Chan Lok-man was last seen at 7pm on December 4 when she left her Sau Fu Street home in Yuen Long, telling her 14-year-old brother that she was going shopping in Yuen Long Plaza. McDonald's communications manager Jackie Chow Ka-wai said the employer of Lok-man's father had contacted them for help. The employer is one of McDonald's suppliers. 'We are pleased to be able to offer help at this sad and difficult time for the family of the missing girl. We hope our assistance is useful,' Ms Chow said. She said it was the first time McDonald's had joined the search for a missing person in such a way in Hong Kong. The poster with a picture of Lok-man - described as a good daughter by her parents - will be put up in McDonald's restaurants in the northern New Territories. Police want to hear from anyone who saw the girl after she left home. Officers have mounted a huge search of the area and made repeated public appeals in the past few days. A police investigator from the Yuen Long district crime squad believes it is unlikely that the girl ran away from home. He added that no ransom demand had been received. 'It is possible she might have been abducted. We are now looking into all possible clues to find the missing girl,' the officer said. 'We are racing against time.' In the first 10 months of this year, more than 2,000 children under 16 were reported missing but subsequently found. Lok-man was last seen wearing a red coat, pink checked shirt, blue jeans and sports shoes. Anyone with information should contact police on 2473 8315.