Four members of a family — a woman, her two daughters and her elder brother — died in an accident in Gurgaon Tuesday evening, when a speeding dumper collided with the motorcycle on which they were travelling. The woman’s one-year-old son was injured and has been admitted to the Civil Hospital in Sohna. The driver of the dumper, which is suspected to have been involved in another mishap in Faridabad about 15 minutes before, abandoned the vehicle and fled, police said Wednesday. According to police, the incident in Gurgaon occurred near Sohna's Harchandpur village, around 8.30 pm. The speeding dumper, travelling from Ballabgarh, first had a head-on collision with a Scorpio and then mowed down the motorcycle in Sohna. The driver of the Scorpio was also injured in the accident. The dead have been identified as Afsana (28), her brother, Irshad (30), and her two daughters, Saima and Ayat, both less than five years old. "The family hailed from Faridabad's Dhoj, but Afsana and her children lived with her husband in Dungarpur. Irshad, who is a labourer, had gone to pick them up and bring them home for a few days," said inspector Harender Singh, station house officer, Sohna police station, where a case has been registered. "One-year-old Zaid is out of danger, but is still admitted at Civil Hospital. The bodies have been sent for post-mortem," he said. "We have seized the dumper, and identified the driver. We suspect that he is also responsible for another accident in Faridabad, just 15 minutes before this one," said inspector Singh. Faridabad Police added that the accident was reported near Sirohi village where a dumper had grazed a Haryana Roadways bus carrying a marriage party. "The hand of a 16-year-old boy, was chopped off in the mishap," said Dhoj police post in-charge, Badam Singh.