KARACHI(National times)- A 22-year-old boy was killed and his friend sustained injuries when the motorcycle they were riding on was hit by a speeding dumper in Karachi on Tuesday, Dunya News reported. According to details, the accident occurred near Malir Cantt Gate No 6 where an over speeding dumper ran over a motorcycle, killing a youngster on the spot and critically injuring another. Police and rescue teams reached the spot after being informed and shifted the dead and injured to hospital. According to police, the deceased was identified as 22-year-old Ghulam Haider. Meanwhile, police have arrest the cleaner of the dumper while the driver managed the escape after the accident. Police have also seized the dumper and started an investigation.