Bangladeshi Muslim devotees offer Friday prayers on a road as other wait on the first day of Biswa Ijtema or World Muslims Congregation on the banks of River Turag in Tongi, outskirts of Dhaka, Bangladesh, Friday, Jan. 12, 2018. Hundreds of thousands of Muslims are expected to attend the annual three-day event that is said to be one of the world's largest religious gatherings being held since 1960's. (AP Photo/A.M. Ahad)