Lewiston, Maine (AP) Police in Maine are investigating the killing of a woman who was stabbed outside of a laundromat in downtown Lewiston.

Police say 48-year-old Kimberly Dobbie was stabbed on Sunday morning and died later in the day at Central Maine Medical Center. They say she’s the mother of two young children and both of them witnessed the assault.

Police say a bystander tackled the assailant until they arrived, and they were questioning the suspect on Sunday. No charges had been filed as of Sunday afternoon. Police declined to identify the suspect.

Police say Dobbie had just started a load of laundry and gone outside the building with her children when the assault occurred. They say an autopsy is likely to take place on Monday in Augusta.