More than a half million Rohingya people are living in a sprawling city of huts in Bangladesh's Kutupalong refugee camp built along the border with Myanmar. They came by the thousands fleeing persecution and attacks by Myanmar's government forces, with many refugees now struggling to stay healthy. The sudden and massive influx of Rohingya was met by a huge relief operation, focusing on their basic physical needs like shelter, food, water and medicine. But lately, more emphasis is being put on mental health to address the enormous psychological impact on the Rohingya refugees, who survived widespread violence and sexual assaults. NewsHour Weekend Special Correspondent Martin Seemungal reports.