The Wal-Mart store at 17850 Garland Groh Blvd. in Hagerstown was evacuated Wednesday night after a threatening letter found in a store office claimed explosives were in the store, a Hagerstown Police Department spokesman said.
The letter said explosives were throughout the store and demanded money be taken to a location in The Home Depot store next door, Sgt. Jim Hurd said.
The store was closed and was evacuated for no longer than an hour while police searched the building, Hurd said.
Nothing was found and the store was reopened, Hurd said.
No one suspicious was seen in The Home Depot lot, Hurd said.
City police were continuing to investigate the threat and hoped to review surveillance video tape from the store to determine if anyone suspicious was seen going into the office, Hurd said.
City police were notified about 7:10 p.m.
The letter was noticed by a worker in the office, Hurd said.