Islamabad: At least six people, including three children, were killed Tuesday when their school van was blown up in Pakistan`s Bajaur Agency of Federally Administered Tribal Areas (FATA). According to officials, the explosive material planted along a roadside in the Tangi area of Salarzai tehsil exploded when the school van was passing through it, Dawn online reported. The victims comprised two female teachers, three children and a driver, the officials said.