An eight-car pile-up on one of Hong Kong Island’s busiest roads left four people in hospital and disrupted traffic for more than three hours on Monday morning. A police spokeswoman said just before 9am, a garbage truck, a taxi and six other vehicles crashed into each other in the westbound lanes of the elevated Island Eastern Corridor in Sai Wan Ho. Six metres of anti-crash barriers were damaged in the accident and falling debris struck a vehicle that was passing below on Tai On Street. Police said the accident happened when one of the cars slammed into two other vehicles and then into the anti-crash barrier. “One woman [a taxi passenger] was trapped and had to be freed by firemen,” the spokeswoman said. The woman, 44, was among four injured – two men and two women – who were taken conscious to Pamela Youde Nethersole Eastern Hospital in Chai Wan for treatment. Officers later arrested the driver of the car that caused the pile-up. On Monday afternoon, the man, 54, was being held for questioning and had not been charged Two of three lanes were closed to traffic following the accident, causing long queues. By about 11am, traffic had backed up two kilometres to Shau Kei Wan, the Transport Department said. Affected lanes on the highway were reopened at 12.30pm after all vehicles involved in the accident were removed. According to police statistics, 17 people died in 17 fatal traffic accidents in the first two months of this year. More than 130 people died in 129 traffic accidents across the city in 2016, up from 122 deaths in 117 accidents in 2015.