A man brandishing a handgun robbed the Circle K convenience store in Randolph Township early Friday.According to Portage County Sheriff David W. Doak, the man entered the store, at 3966 Waterloo Road, about 12:35 a.m. He approached the clerk and demanded money and a carton of cigarettes.He fled on foot with an undisclosed amount of money and merchandise, the sheriff’s report said.The clerk was not harmed.The robber is described as a white man, in his middle 20s, about 5-foot-6 with a thin build with no facial hair.