Touring a camp which is home to 500,000 refugees, he met Rohingya families and community leaders to learn about the persecution they have suffered, and heard first-hand about the challenges that life in the camps presents.
"It is vital the public knows what happened and the world knows what happened in Rakhine and who was responsible", Secretary of State for Foreign Affairs Boris Johnson told Reuters in Kutupalong refugee camp in Bangladesh.
Speaking during a visit to a refugee camp in Bangladesh, and ahead of meeting Aung San Suu Kyi tomorrow, Mr Johnson said the Rohingya people should be able to return to their homes securely.
The Reuters report drew on interviews with Buddhists who confessed to torching Rohingya homes, burying bodies and killing Muslims in what they said was a frenzy of violence triggered when Rohingya insurgents attacked security posts last August.
On Sunday, Mr Johnson will hold talks with Myanmar's de-facto leader Aung San Suu Kyi to discuss the crisis and press for the end to the suffering in Rakhine and the safe and voluntary return of the refugees.
Earlier Mr Johnson met Bangladeshi Prime Minister Sheikh Hasina and Foreign Minister Abul Hassan Mahmud Ali. "We need to make those points together to the government in Nay Pyi Daw".
The United Nations has accused Myanmar of driving the Muslim minority across the border in an ethnic cleansing campaign.
Mr Johnson will later be taken on a tour of Rakhine State - the area the refugees are from - by the Myanmar military and will also meet the chair of the Advisory Board on the Rakhine Advisory Commission, Surakiart Sathirathai.
Neighbouring Bangladesh has agreed a timeframe with Myanmar for repatriating Rohingya people.
But aid agencies have expressed fears at their safety, and at the slow progress, with only 1,500 expected to return per week. It is looking at the problems in Rakhine state.
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