A Bangladeshi military training aircraft crashed into the campus of a school in Dhaka, killing the pilot and at least 19 others, mostly students, officials say.

Hundreds of students gathered outside the smoldering remains of a school in the Bangladeshi capital on Tuesday to demand answers after a military jet slammed into the campus, killing dozens of children.

The ongoing unrest over Monday's crash shut down traffic in parts of Dhaka, a city still recovering from last year's student uprising that ousted the prime minister as the interim government seeks to restore order and organize elections next year.