A Bangladeshi fighter jet crashed into a school in the capital Dhaka on Monday, killing at least 20 people and injuring more than 170 in the country’s deadliest aviation accident in decades. Many of the victims were young students who had just been let out of class when a Chinese-made F-7 BJI aircraft slammed into the Milestone School and College.

PM Modi expressed his condolences following Monday’s deadly air crash in Dhaka, where a Bangladesh Air Force training jet crashed into a school, killing at least 19 people.