Police in Maine are investigating the late night death of a female employee at a Dunkin' Donuts shop in Windham.  

35-year-old Erica Foster of Windham went to the bathroom after a cigarette break at about 1 a.m. and didn't come out. Windham police say another employee found Foster dead in the bathroom.

Two Cumberland County Sheriff's deputies were across the street when the call for help was made at 1:39. The officers performed CPR until rescue personnel arrived.

Police say there was evidence of drug use, but they are still investigating whether that contributed to Foster's death..