In Portage, police continue to investigate a robbery Monday night. Officers were called out to At Nature's Door on US 6, where shortly after 6 pm police say a subject grabbed an employee by the arm, forcing her to open the register and give him money. Authorities say surveillance shows the suspect coming from the rear of the property, northeast corner, and afterwards, going to the same location and disappearing into a wooded area. Police say the direction of boot prints appear the suspect would have run toward the area of Fiesta Avenue and the Willowcreek Estates Apartment Complex. Police say the suspect was wearing a black ski-type mask with the eye openings, a black hoodie with the hood over his head, blue jeans, black boots, and black gloves, with the palms and bottom of his fingers being white. Police say the suspect appears to be 5'10" or taller with a stocky build. Detectives who checked the area say they located a black semi-automatic looking BB gun in the woods near Fiesta. Anyone with information is asked to call Portage Police Detective Vaughan at 219-764-5705.