Rangamati is a town and the administrative headquarters of Rangamati District in the Chittagong Hill Tracts of Bangladesh. The town is located at 22°37'60N 92°12'0E and has an elevation of 14 metres above sea level. From Wikipedia
The advisory includes a Level 4 'Do Not Travel' warning for the Chittagong Hill Tracts and reflects ongoing concerns over communal violence, terrorism, and crime.