Iron Age Korean Steakhouse at 1054 Rockville Pike in Rockville has announced that they are temporarily closing due to COVID-19 cases among the staff, and to allow time for staff members to get tested.
Full statement from the owner below:

The restaurant’s voicemail currently states that they will be reopening on January 1st, but according to the above post they now plan on reopening January 3.
For more information visit www.ironagekoreansteakhouse.com