Rohingya refugee children are too scared to leave their tents at night for fear of being attacked by wild elephants, snakes, rapists, thugs and human traffickers.

The finding was revealed in a new report released by the Save the Children foundation marking the six-month anniversary of the Rohingya refugee crisis , which has already seen at least 688,000 Rohingya refugees displaced into Bangladesh. More than half of them are children.

The refugees have been living in temporary camps comprised of bamboo and plastic tents since the August 25, 2017, crackdown by Myanmar military, which was touted as an anti-terrorist "clearance operation".

Those children who survived the ensuing violence — including the murders of family members and the destruction of their homes — continue to live in fear and turmoil.

Many have told researchers they face harassment by men at camp toilets, attacks by "forest men" while collecting firewood, and dangers posed by wild animals.

Rohingya refugee children are too scared to leave their tents at night for fear of being attacked by wild elephants, snakes, rapists, thugs and human traffickers. (AAP)

The refugees have been living in temporary camps comprised of bamboo and plastic tents since the August 25, 2017, crackdown by Myanmar military. (AAP)

"Everybody suffers when collecting firewood. There was once a girl who was raped when collecting firewood at night," one girl is reported as saying.

Other children said they avoided leaving their homes or made sure to travel in groups in order to avoid being kidnapped by human traffickers.

At least 32 trafficking cases have been reported so far, though aid workers suspect many incidents have gone unreported.

"The overwhelming message from these children is that they are afraid … afraid of being taken in the night, afraid of what the future holds," Bangladesh Director for Save the Children Mark Pierce said.

"They have gone from living in a community where they know the neighborhood, have close friends, a routine, a good variety of food and safe places to play, to a chaotic, overcrowded and frightening place.

Those children who survived the ensuing violence — including the murders of family members and the destruction of their homes — continue to live in fear and turmoil. (AAP)

"Everybody suffers when collecting firewood. There was once a girl who was raped when collecting firewood at night". (AAP)

"Many are orphaned and lost, living in a perpetual state of anxiety."

Save the Children, together with World Vision and Plan International are propsiing a raft of measures to help protect children living in the Rohingya camps.

They include a review of current camp safety patrols, raising awareness about the risk of trafficking, adjusting camp layouts and signage to prevent children becoming lost, and empowering teenage girls to feel safer.

The call comes just a day after one of several bombs targeting government offices and other places in Myanmar's troubled Rakhine state were detonated.

Three bombs exploded and three unexploded devices were seized in Sittwe, the state capital. One police officer was reportedly injured.

At least 32 trafficking cases have been reported so far, though aid workers suspect many incidents have gone unreported. (AAP)

Many have told researchers they face harassment by men at camp toilets, attacks by "forest men" while collecting firewood, and dangers posed by wild animals. (AAP)

One of the explosions was in front of a high-ranking government official's residence, state police officer Aung Myat Moe said.

Last month, local police fired at protesters in the ancient city of Mrauk-U, killing at least seven Rakhine Buddhists and injuring a dozen.