Police arrested two Reuters reporters, Wa Lone and Kyaw Soe Oo, on December 12 for allegedly obtaining confidential documents relating to Rakhine and have accused them of violating Myanmar's Official Secrets Act.
The pair now face up to 14 years in prison on charges of possessing classified documents in violation of the colonial-era Official Secrets Act.
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.
Almost 690,000 Rohingya have fled Myanmar's Rakhine state and crossed into southern Bangladesh since August, when attacks on security posts by insurgents triggered a military crackdown that the United Nations has said may amount to genocide.
British Foreign Secretary Boris Johnson met Myanmar leader Aung San Suu Kyi on Sunday to discuss the Southeast Asian nation's Muslim ethnic Rohingya minority and how nearly 700,000 of them can be repatriated safely after fleeing to Bangladesh to escape violence perpetrated largely by Myanmar's military.More news: Chris Mazdzer Latest News, Photos, and Videos
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Referring to the Reuters report, Johnson said: "It's an extremely brilliant piece of reporting, providing a very, very important testimonial which I will be bringing up tomorrow, you can be sure, with State Counsellor Daw Aung San Suu Kyi and others".
"Discussed importance of Burmese authorities in carrying out full & independent investigation into the violence in #Rakhine & urgent need to create the right conditions for #Rohingya refugees to return to their homes in Rakhine", Johnson wrote on his Twitter account of his meeting with Suu Kyi, who also serves as foreign minister.
The United Nations has accused Myanmar of driving the Muslim minority across the border in an ethnic cleansing campaign.
Mr Johnson visited a UNICEF child-friendly site where he saw the efforts being made to keep young people safe. Myanmar denies ethnic cleansing, and says its security forces mounted legitimate counter-insurgency clearance operations.
Suu Kyi, a Nobel Peace Prize victor, has faced heavy worldwide criticism for not taking a higher profile in responding to the strife in Rakhine state.