A Walmart store in Maryland was evacuated Friday night after someone called asking about "bomb making" materials.
Investigators say someone called the store in the town of California, wanting to know if there were supplies to make bombs. The clerk got nervous and talked to a store manager, who called police.
Officers evacuated the store, and St. Mary's County K-9 units swept the building as a precaution. Nothing was found.
Authorities reviewed the call and deemed it was not a threat.
Store operations were disrupted for about two hours.