A woman and her son died on the spot while another person was injured when their motorcycle was crushed by a speeding tractor-trolley on Mehran Highway in Khairpur on Saturday, reported 24NewsHD TV channel.
The deceased woman and her son were later identified as Zareena and two-year-old Mohammad Bukhsh.
After receiving the information, the local police reached the spot and shifted the dead bodies to Civil Hospital in Khairpur.
Police said that the accident occurred due to over-speeding. Further investigation was underway.
Reporter: Waqar Hussain Mangi