Still, Ihsanoglu called it a success — mostly because it came at the invitation of a government that has largely remained silent about the repeated attacks on minority Muslims.
He said he received assurances the government was seeking to resolve issues of citizenship for its 800,000 Rohingya, but gave no details.
"If this issue is not solved it will be a big problem," he said.
Rohingya, excluded from the country's 135 recognized ethnic groups, have for decades endured systematic discriminatory and exclusionary policies, restricting movement, access to education and jobs.
Opposition leader Aung San Suu Kyi — who has said little in defense of the religious minority — declined to meet with the OIC delegation.
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