Howard County Police are offering a reward of up to $500 for information regarding the Jan. 19 robbery of a Columbia Exxon station.
Police have also released photos of a man and a vehicle taken from surveillance footage.
Police said officers responded to the Exxon, located in the 8200 block of Snowden River Parkway, at approximately 1:45 p.m. to a report of a robbery.
The investigation revealed a man with a knife wearing a yellow bandanna entered the business and demanded money from the clerk, who complied, police said.
Police said the man also stole several cartons of cigarettes before fleeing the story.
Then the man entered the passenger side of a waiting red sedan which drove away, police said.
Surveillance footage from the Exxon reveals that the man entered the store wearing the same clothes, but without the bandanna, three hours prior to the robbery, according to police.
Last week, Howard County Police announced two men had been charged in the Jan. 5 robbery of the Exxon station, during which one man is accused of throwing hot coffee on the clerk, police said.
The Jan. 19 robbery was the third incident at the station since September.
Police spokeswoman Sherry Llewellyn said the department has arranged for a crime prevention officer to assist the gas station in the future.
Police are asking anyone with information to call 410-313-STOP. Police will also accept tips through the free smartphone app, “iWatchHowardCounty.”