The girl students including two real sisters died when their school van fell into a ditch in Rawlakot in Azad Kashmir on Saturday, reported 24NewsHD TV channel.
A van taking students to school skidded off the road and fell into a ditch near Pehelian in Tarar Khul, district Sidhonti, Rawlakot.
As a result, three students including two sisters and their cousin died on the spot while several other students sustained injuries.
The injured students were shifted to Tarar Hospital where their condition was out of danger.
Reporter Masood Gurdezi