The front entrance window of San Marco Food Store on the Northside was shot at Monday.
Jacksonville police were called to the store in the 1200 block of Eastport Road just after noon.
Someone down the road heard the gunshot.
Police said they're not sure what happened but said the gunfire could have been accidental.
No one was hurt and there were no suspects.
Anyone with any information about the shooting is asked to call Crime Stoppers at 866-845-TIPS.