City police are looking for the public's help in identifying a woman who reportedly robbed a Mac's convenience store overnight. Police say the woman entered the store just after midnight on the 600 block of Arthur Street near Mountdale brandishing a knife. The woman demanded money and cigarettes and was last seen wearing a dark hoodie with dark leggings and had her face covered. If you have any information about the identity of the woman, you're asked to call city police or crimestoppers.