Bangor police are investigating a robbery that occurred at the drive-through window of the Dunkin’ Donuts at 1110 Broadway Tuesday at 7 p.m.

Police say a woman approached the window on foot and said something to the clerk that led the worker to hand over cash. Police did not report what was said.

Anyone with information about the woman’s identity is asked to call police at 947-7382 and can press 6 to use the anonymous tip line.