A water main break occurred outside the Foggy Bottom Metro station sometime early this morning, D.C. Water and Sewer Authority officials said Tuesday.

Twenty-third street is currently blocked off to cars between H Street and Washington Circle, where a firetruck is parked to block incoming traffic. Pedestrians can still travel around the site, and the Foggy Bottom Metro station is operating.

The exact time that the eight-inch water main broke is unclear, but WASA safety specialist David Lyles said it occurred before 6:00 a.m. University Police Department officers on the scene said they got a call around 6:45 a.m., though they believe it may have occurred before that time.

According to a GW campus advisory, repairs are expected to be completed around 4:30 p.m. Lyles said it may be hard to estimate the time because the WASA employees will have to break up the asphalt on the street, dig down to the main break, assess the situation and replace the pipe.

Though buses that operate on 23rd Street are currently impacted by the break, the Ross Hall parking garage is open, according to the advisory. It must be entered from the H Street side of 23rd Street and may require GWorld identification. The University parking garage is also open.