text:  This is WFMD News. A suspicious package caused an evacuation of a Frederick Walmart store on Thursday morning. Police responded to a report of a suspicious object left in the store on Guilford Drive at around 11.15 a.m. The store was evacuated. Authorities say a suspicious package was a backpack after an investigation by fire officials. It was deemed safe. People were able to reenter the store at around 2 p.m.