The 7-Eleven store in the 3900 block of Pulaski Highway in Abingdon was robbed Tuesday night by a man with a knife, police said.
No one was inured in the robbery, which was reported at 10:46 p.m., according to Cristie Kahler, a spokesperson for the Harford County Sheriff's Office.
The robber approached the clerk in the back of the store with a knife. He forced the clerk to open the register in the front of the store and hand over an undisclosed amount of cash, Kahler said.
The robber is described as a white man, 20 to 25 years old. He was wearing a brown sweatsuit. He ran out of the store in an unknown direction.
Anyone with information regarding the crime who wishes to remain anonymous may report their information online at http://www.harfordsheriff.org/wanted or call Harford Crime Solvers, 1-888-540-8477.
Qualifying tips that lead to an arrest and indictment may be eligible for up to $1,000 in rewards.