At least 10 people were slightly injured as Typhoon Krovanh brushed Hong Kong yesterday and headed towards Hainan. The typhoon was 350km south of Hong Kong at its closest, with wind speeds reaching 140km/h, said Leung Wing-mo, senior scientific officer at the Observatory. There were no reports of serious damage. The strong wind signal No 3 was hoisted at 11.30am as the typhoon - named after a Cambodian tree - edged closer to Hong Kong. Mr Leung said that because Krovanh was projected to pass Hainan early this morning, it was unlikely that a higher signal would be raised in Hong Kong. Typhoon Krovanh was moving west-northwest at about 22km/h in the general direction of Hainan. Strong winds uprooted at least 30 trees around Hong Kong and blew the scaffolding from a number of buildings in Kowloon. In Ngau Tau Kok, a large section of scaffolding at a building being demolished was brought down, although there were no reports of any injuries. The 10 people hurt included a family of four, aged between 10 and 41, who were hit by planks blown from a truck in Tai Kok Tsui. All the victims suffered minor cuts and were allowed to leave hospital after treatment. A boy of nine, however, was admitted to hospital in stable condition with head injuries after being hit by a piece of concrete that was blown off a building in Mongkok. By 9pm yesterday more than 60mm of rain had been recorded by the Observatory, and the weathermen warned there would be more heavy rain over the next three days. Due to the hoisting of the No 3 signal, First Ferry suspended services between Tuen Mun to Sha Lo Wan and Tai O, and City Bus suspended four routes - 515, 698R, 29R and 12S. The Hong Kong Tourism Board cancelled last night's Strato-Fantasia, scheduled to take place at 7.30pm on the Wan Chai harbourfront. Two temporary shelters were opened by the Home Affairs Department for people in need at Yau Tsim Mong in Kowloon and Eastern District on Hong Kong island.