At least 15 people were injured when a minivan and a trailer collided with each other on the national highway near Matiari, Sindh Province, on Sunday.
Seven of the injured people were said to be in a critical condition and they were shifted to a hospital in Hyderabad.
Police have taken the trailer driver into custody.
Those injured were identified as Wasif Saand, Asif Ali, Tahir Gadijo, Sanaullah Chattu, Mushtaq Saand, Mukhtar Saand, Nazeer Chattu, Ataullah Chattu. Ali Asghar Chattu, Barkat Annarr, Ehsan Muhammad, and Saleh Chattu.