The Five Guys location at 2300 Wilson Blvd in Courthouse has been temporarily closed for at least the past week.

“Attention: This location will be temporarily closed,” says a sign on the door of the popular burger restaurant. “We apologize for this inconvenience. Please visit our other nearby locations during this time.”

Online ordering from the location is also listed as “temporarily unavailable.”

It’s unclear why the eatery is closed. Workers could be seen inside the restaurant yesterday, performing some sort of work on or in the ceiling. Thus far a phone call to a company spokeswoman has not been returned.

When ARLnow.com drove by today a group of firefighters could be seen walking up to the restaurant and then walking back, empty-handed, to their truck.

The first Five Guys opened in Arlington in 1986. The company is now headquartered in Lorton and has well over 1,000 locations nationwide.