More than 100 fleeing Rohingya Muslim refugees have been detained on a boat off the coast of Myanmar, officials said.

The boat was bound for Malaysia when it was stopped by authorities early on Friday morning around 20 miles south of Yangon, Myanmar’s largest city, an immigration officer said.

The group had boarded the vessel from internal displacement camps outside Sittwe, the capital of Rakhine state, Kyaw Htay said.

He added: “The boat was stopped after the engine failed.”

Rohingya crisis one year on – Myanmar camps in pictures Show all 30 1 /30 Rohingya crisis one year on – Myanmar camps in pictures Rohingya crisis one year on – Myanmar camps in pictures Rohingya women and children wait in line for a food distribution of super cereal at Action Against Hunger Getty Images Rohingya crisis one year on – Myanmar camps in pictures Rohingya refugees gather near the fence in the "no man's land" zone between Myanmar and Bangladesh border AFP/Getty Rohingya crisis one year on – Myanmar camps in pictures Rohingya women cry as they shout slogans during a protest rally to commemorate the first anniversary of Myanmar army's crackdown AP Rohingya crisis one year on – Myanmar camps in pictures A Rohingya Muslim child holding an umbrella while under the rain AFP/Getty Rohingya crisis one year on – Myanmar camps in pictures Rohingya refugees cry as they pray during a gathering to commemorate the first anniversary of Myanmar army's crackdown which lead to a mass exodus of Rohingya Muslims to Bangladesh AP Rohingya crisis one year on – Myanmar camps in pictures Police stand near the checkpoint at the Shwe Zar village in Maungdaw township, Rakhine State, western Myanmar EPA Rohingya crisis one year on – Myanmar camps in pictures A group of Rohingya refugee children stand at a makeshift camp EPA Rohingya crisis one year on – Myanmar camps in pictures Rohingya refugee Juhara, whose name has been changed to protect her identity, poses for a portrait at the Kutapalong refugee camp near Cox's Bazar in southern Bangladesh. Juhara passes her days carting water with difficulty to thirsty bricklayers working in a bustling corner of Cox's Bazar. She has just one hand - the other was cleaved off in a raid on her village after the August 25 clampdown started last year. Her husband and parents were killed. The 40-year-old said she ran for her life but was hunted down and savagely attacked AFP/Getty Rohingya crisis one year on – Myanmar camps in pictures Rohingya refugees walk on a road along a makeshift camp in Kutubpalang EPA Rohingya crisis one year on – Myanmar camps in pictures Rohingya refugees are seen outside of their makeshift tent in the Kutupalong camp in Cox's Bazar Reuters Rohingya crisis one year on – Myanmar camps in pictures Thousands of Rohingya refugees staged protests for "justice" on August 25 on the first anniversary of a Myanmar military crackdown that forced them to flee to camps in Bangladesh AFP/Getty Rohingya crisis one year on – Myanmar camps in pictures A Rohingya refugee child looks through a window at a makeshift camp in Teknuf EPA Rohingya crisis one year on – Myanmar camps in pictures Rohingya refugee women hold placards as they take part in a protest at the Kutupalong refugee camp Reuters Rohingya crisis one year on – Myanmar camps in pictures A young Rohingya boy waits in line for a food Getty Images Rohingya crisis one year on – Myanmar camps in pictures Rohingya refugees shout slogans during a protest march AFP/Getty Images Rohingya crisis one year on – Myanmar camps in pictures Rohingya refugee girl with other children at a makeshift camp in Teknuf in Cox's Bazar EPA Rohingya crisis one year on – Myanmar camps in pictures Rohingya women protest on the first anniversary of the Rohingya crisis Getty Images Rohingya crisis one year on – Myanmar camps in pictures Rohingya women and children receive super cereal at Action Against Hunger Getty Images Rohingya crisis one year on – Myanmar camps in pictures Rohingya girls share a laugh in Kutupalong, the largest refugee camp housing the Rohingya Rohingya crisis one year on – Myanmar camps in pictures Rohingya refugees gather near the fence in the "no man's land" zone between Myanmar and Bangladesh border AFP/Getty Rohingya crisis one year on – Myanmar camps in pictures Rohingya refugees attend a ceremony organised to remember the first anniversary of a military crackdown that prompted a massive exodus of people from Myanmar to Bangladesh AFP/Getty Rohingya crisis one year on – Myanmar camps in pictures Rashida Begum, a Rohingya refugee woman walks on the Kutupalong camp in Cox's Bazar Reuters Rohingya crisis one year on – Myanmar camps in pictures A Rohingya refugee bursts into tears as she shouts slogans during a protest march AFP/Getty Rohingya crisis one year on – Myanmar camps in pictures Rohingya refugee baby Nur Sadek two years old undergoing treatment at a Medecins Sans Frontieres (MSF) hospital in Teknuf in Cox's Bazar EPA Rohingya crisis one year on – Myanmar camps in pictures Rohingya refugees protest Getty Rohingya crisis one year on – Myanmar camps in pictures Rohingya refugees perform prayers AFP/Getty Rohingya crisis one year on – Myanmar camps in pictures Rashida Begum, a Rohingya refugee woman bathes her son in the Kutupalong camp Reuters Rohingya crisis one year on – Myanmar camps in pictures Rohingya refugees protest Getty Rohingya crisis one year on – Myanmar camps in pictures Rohingya refugees walk on a muddy road EPA Rohingya crisis one year on – Myanmar camps in pictures Rohingya women and children wait in line for a food distribution of super cereal at Action Against Hunger Getty

Fears have now been raised of a fresh wave of dangerous voyages being undertaken by those fleeing the country, similar to those seen after a crackdown on people smugglers in 2015.

More than 700,000 Rohingya refugees have fled to Bangladesh from western Rakhine state to escape brutal killings, gang rapes and the burning of their villages by the military and Buddhist vigilantes.

A UN-mandated investigation has accused the Myanmar army of genocide and ethnic cleansing.

Myanmar has denied almost all of the allegations, arguing security forces were battling terrorists and responding to attacks by Rohingya insurgents.

Cate Blanchett has urged the UN not to fail the Rohingya again

Officials earlier said they were ready to accept Rohingya who wanted to return from Bangladeshi refugee camps, but plans to repatriate several thousand fell through after the refugees protested, saying they did not want to return.

A stranded boat used by Rohingya Muslims at Thande village beach outside Yangon (Reuters/Myat Thu Kyaw) (Reuters)

UN officials and aid agencies also opposed the plan, saying conditions in Myanmar were not safe.

There were 50 men, 31 women and 25 children among the refugees intercepted at sea, said Aye Mya Mya Myo, a politician for Aung San Suu Kyi’s ruling National League for Democracy party.

She posted pictures on Facebook of a rickety boat crammed with people. The boat resembled those typically used by Rohingya to escape the apartheid-like conditions in Rakhine, where they are denied free movement, education and healthcare.

For years, Rohingya on both sides of the border have boarded boats organised by smugglers in the dry months between November and March, when the sea is calm. But the perilous journey to Thailand and Malaysia, often undertaken in overcrowded vessels, has cost many lives.

Thailand cracked down on the trade after discovering a series of mass graves in 2015, leading to a crisis when smugglers abandoned their human cargo and left boats adrift in the Andaman Sea.