It was after Mohib Ullah scored his first political victories that the death threats began in earnest. On a recent morning, the Rohingya refugee leaned back on a plastic chair in the Bangladesh camp where he lives and translated the latest warning, sent over the WhatsApp messaging app.

"Mohib Ullah is a virus of the community," he read aloud, with a wry chuckle. "Kill him wherever he is found."

The 44-year-old leads the largest of several community groups to emerge since more than 730,000 Rohingya Muslims fled Myanmar after a military crackdown in August 2017.