The ship carrying the Bangladeshis will bring back Myanmar security personnel who crossed the border recently amid fighting with rebels
The six were arrested during several raids on Monday, said Dhaka Metropolitan Police spokesperson Md Masudur Rahman.
Police are yet to release the names of the suspects.
More information would be available at a press conference on Tuesday, said Masudur Rahman.
“We will consider cancelling the (mathematics) exam if we find the questions were leaked and helped or harmed the examinees,” Education minister Nurul Islam Nahid told bdnews24.com on Monday.