What is happening in Rakhine state?
A massive security operation was launched last month after nine police officers were killed in co-ordinated attacks on border posts in Maungdaw.
Some government officials blamed a militant Rohingya group for the attacks. Security forces then sealed off access to Maungdaw district and launched a counter-insurgency operation.
Rohingya activists say more than 100 people have been killed and hundreds arrested amid the crackdown.
Soldiers have also been accused of serious human rights abuses, including torture, rape and executions, which the government has flatly denied.
It says militants have attacked helicopter gunships providing air support to troops.