The IOM found that Rohingya refugee children working harsh hours for little pay in Bangladesh, with some suffering beatings and sexual assault.
Independent reporting by Reuters published by the news agency on Monday corroborated some of the IOM findings.
About 450,000 children, or 55 percent of the refugee population, live in overcrowded camps in Bangladesh after fleeing violence and persecution at home in Myanmar.
Most of the refugees have arrived in the past two and a half months after Myanmar’s military launched what was described by the UN as a “textbook example of ethnic cleansing” in Rohingya-majority Rakhine State.
The IOM’s findings are based on discussions with groups of long-term residents and recent arrivals, and separate interviews by Reuters and other groups and news outlets. The results show children were targeted by predators and, in many cases, encouraged to work by their poor parents amid widespread malnutrition and poverty in the camps.
Rohingya boys as young as seven years old were confirmed working outside the refugee camps on farms, construction sites and fishing boats, as well as in tea shops and as rickshaw drivers, the IOM and Rohingya residents in the camp reported.
Muhammad Zubair, aged between 12 to 14 years old from the Kutupalong camp, said he was offered 250 taka ($3) per day but ended up with only 500 taka ($6) for 38 days work on building roads.
“It was hard work, laying bricks on the road,” he said, recalling that he was verbally abused by his employers when he asked for more pay and told to leave.
Zubair then took a job in a tea shop for a month, putting in two shifts per day from 6 a.m. to past midnight, with a four-hour rest period in middle.
“When I wasn’t paid, I escaped,” he said. “I was frightened because I thought the owner, the master, would come here with other people and take me again.”
The girls at the refugee camps are typically employed as maids or nannies for Bangladeshi families.
One Rohingya parent, who asked not to be identified because she feared reprisals, told Reuters that her 14-year-old daughter had been working in Chittagong as a maid but fled her employers.
When she returned to the camp, she was unable to walk, her mother said, adding that her daughter’s Bangladeshi employers had physically and sexually exploited her.
The IOM has documented several similar cases in which female Rohingya refugees “experienced sexual harassment, rape and being forced to marry the person who raped her.”
Refugee parents, however, encourage their daughters to marry early, for protection and for financial stability, according to the IOM findings.
Some child brides are as young as 11, the IOM said.