Bangladeshi Muslims travel on the roof of an overcrowded train as they head to their hometowns ahead of Eid al-Adha in Dhaka, Bangladesh, Friday, September 1, 2017. The festival commemorates the story of Abraham and his readiness to sacrifice his son as an act of obedience to God, who provided a lamb to be used instead. (Photo by Bernat Armangue/AP Photo)





Bangladeshi Muslims look out from a window of an overcrowded train as they head to their hometowns ahead of Eid al-Adha in Dhaka, Bangladesh, Friday, September 1, 2017. (Photo by Bernat Armangue/AP Photo)





Bangladeshi Muslims travel on an overcrowded train as they head to their hometowns ahead of Eid al-Adha in Dhaka, Bangladesh, Friday, September 1, 2017. (Photo by Bernat Armangue/AP Photo)





Bangladeshi Muslims travel on an overcrowded train as they head to their hometowns ahead of Eid al-Adha in Dhaka, Bangladesh, Friday, September 1, 2017. (Photo by Bernat Armangue/AP Photo)





Bangladeshi Muslims climb onto the roof of an overcrowded train to travel to their hometowns ahead of of Eid al-Adha in Dhaka, Bangladesh, Friday, September 1, 2017. (Photo by Bernat Armangue/AP Photo)





Bangladeshi Muslims travel on an overcrowded train as they head to their hometowns ahead of Eid al-Adha in Dhaka, Bangladesh, Friday, September 1, 2017. (Photo by Bernat Armangue/AP Photo)





Bangladeshi Muslims climb onto the roof of an overcrowded train to travel to their hometowns ahead of of Eid al-Adha in Dhaka, Bangladesh, Friday, September 1, 2017. (Photo by Bernat Armangue/AP Photo)





Bangladeshi Muslims travel on the roof of an overcrowded train as they head to their hometowns ahead of Eid al-Adha in Dhaka, Bangladesh, Friday, September 1, 2017. (Photo by Bernat Armangue/AP Photo)





Bangladeshi Muslims travel on an overcrowded train as they head to their hometowns ahead of Eid al-Adha in Dhaka, Bangladesh, Friday, September 1, 2017. (Photo by Bernat Armangue/AP Photo)