WITH more than two million flocking to sweep the graves of their ancestors for the annual Chung Yeung festival yesterday, seven-year-old Lee Shung-chi took advantage of a quieter moment in Chai Wan cemetery to pay his respects to his dead great-grandmother. Cemeteries across the territory were crowded, with Wo Hop Shek, Chai Wan and Tsuen Wan especially busy, as families carrying bags of food, flowers and joss sticks paid homage to dead relatives and friends. Police introduced special crowd control and traffic measures in and around cemeteries, closing roads in Fanling, Chai Wan, Junk Bay and Wong Tai Sin to allow worshippers to get to the graves. Bus companies set up more than 10 temporary routes for the festival, while the Kowloon Canton Railway (KCR) put on extra trains. More than 50,000 people travelled to the mainland through Lowu yesterday, joining about 140,000 others who left the territory on Friday for China to worship their ancestors. The Fire Services Department yesterday reported 70 hill fires, more than 60 of which were in the New Territories. A spokesman said dry weather had contributed to the fires, which he said were caused by worshippers burning paper money for their ancestors. He said the most serious fire was on the Tai Po industrial estate. No-one was reported injured. The Chung Yeung festival falls on the ninth day of the ninth month in the Chinese calendar, and is also known as the ''double ninth'' festival.