Officials said nearly 500 Hindus arrived in Bangladesh's Cox's Bazar, bordering Myanmar, along with tens of thousands of Rohingya Muslims amid escalated violence at home.
UN officials estimate some 90,000 people have fled to Bangladesh from Myanmar in past 10 days and thousands more were trapped on borders without basic food and medicines.
"A total of 414 Hindus from (Myanmar's) Rakhine state took refuge at a Hindu village in Cox's Bazar," a Bangladeshi official told PTI on condition of anonymity.
He said the refugees took shelters in different Hindu houses after fleeing their home along with ordinary Rohingyas following the killing of 86 Hindus in ethnic violence.
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"According to the Hindu refugees, unidentified masked people in black attires attacked their homes killing 86 people on August 27 and 28 at different places in Myanmar's Mangdu district," he said.
Dasgupta said ordinary Rohingya Muslims escorted them to borders from where these Hindus entered Bangladesh along with thousands others.
"The attack on Myanmar Hindus should be investigated to bring the perpetrators to justice," he said.
The latest spate of violence erupted in Rakhine state on August 25 after alleged Rohingya insurgents attacked several police posts, triggering a counter-offensive by the military that resulted in the death of at least 400 people.
Rakhine, the poorest region in Myanmar, is home to more than a million Rohingya. They have faced decades of persecution in the Buddhist-majority country, where they are not considered citizens.
Soldiers and armed residents have been accused of carrying out a killing spree against Rohingya Muslim men, women, and children.
Prime Minister Sheikh Hasina today reviewed the Rohingya situation in the monthly meeting of National Security Council that comprises her security adviser, chiefs of three armed forces, police, and the intelligence agencies, an official familiar with the meeting told PTI.
Dhaka had urged Myanmar to take steps to protect innocent civilians to prevent the mass exodus and then proposed a joint security clampdown.
Bangladesh also alleged that Myanmar military helicopters violated its airspace repeatedly on August 27, 28 and September 1, prompting its air force and navy to intensify their security alertness.