Two senior U.N. officials told Reuters the crisis is significantly worse than previously thought.
Police said they found weapons and thousands of the stimulant pills in the monk's car.
Human rights groups said the army's actions could amount to crimes against humanity.
The military launched an offensive against the minority group in October.
The Myanmar army initiated a crackdown on purported Rohingya militants in October.
Cruising the Irrawaddy River gives some sense of how, post-sanctions, Myanmar is changing.
He calls his social media foray "journalism written with hate speech."
The critically endangered Burmese Star Tortoises have been safely reported to a Myanmar sanctuary.
After winning a historic election, the Nobel winner needs to bring peace to all of Myanmar.
An estimated 100 people also remain missing with hope dwindling that they will be found
Aung San Suu Kyi's party is leading in nearly all the districts where vote counting has been completed.
The opposition appears on course for a landslide in the first free elections in 25 years.
Activist's National League for Democracy party is expected to win largest share of votes.
Ahead of Myanmar's historic elections, a new report finds evidence of ongoing genocide against the Muslim minority group.