The Arakan Army (AA) says it seized Ponnagyun Township police station near Rakhine State’s capital Sittwe on Thursday.
Ponnagyun is on the Yangon-Sittwe road about 30km north of the state capital, where the regime has tightened security.
The AA recently seized Pauktaw town, which is also near Sittwe.
It has told the Sittwe Military Command to surrender or face defeat, according to the Rakhine media.