Escalator outages persisted at the Foggy Bottom Metro station today, forming a line to enter the station that snaked around the neighboring hospital during this afternoon’s rush hour. The station has been experiencing escalator outages for the past few weeks, caused by intermittent repairs, unexpected outages and even a passenger’s shoelace getting caught.

Two of the station’s escalators are currently under repairs scheduled to continue into September and the third unexpectedly stopped working earlier today. For the second time in three weeks, all three escalators were out of service with only one to serve as a stairway for the station’s commuters, causing the backup.

Foggy Bottom is not the only station with escalator problems, Metro’s web site shows that 38 stations are currently experiencing outages.