Chennai: In a hit-and-run case, a 62-year-old woman was fatally knocked down by a speeding car on ECR near Palavakkam on Friday night. Police arrested a restauranteur and seized his luxury vehicle that was involved in the accident.R Krishnaveni of Neelankarai was crossing the road to dump garbage around 10pm when the car hit her and sped away. Passersby called an ambulance to the spot, but the medical crew refused to take her to the hospital, claiming that she was already dead.Infuriated, Krishnaveni’s relatives and residents blocked the road. They said the police did not show up at the spot even an hour after the accident. A team from Adyar traffic investigation police station reached the spot and held talks with the protesters.Police said the ambulance crew did not alert them as per procedure, and another ambulance had to come from Royapettah govt hospital, which delayed shifting the deceased from the spot.Following inquiries, police identified the car and arrested its owner, Manikandan of Madambakkam.