(Updated at 9:40 a.m.) Hundreds — and perhaps even thousands — of water customers in Crystal City are without water service this morning.

Arlington’s Dept. of Environmental Services (DES) says it is currently performing emergency water main repairs following a series of at least three water main breaks. Drivers should expect detours around one of the work zones, near the intersection of 23rd Street S. and Crystal Drive.

“Several buildings” are without water, the Crystal City Business Improvement District said via social media. Tipsters have told ARLnow that some buildings are closed due to the outage.

A map posted by DES shows outages across a wide swath of Crystal City, from 15th Street S. to S. Potomac Avenue, east of Route 1. As of 9:30 a.m., water service has been restored to buildings north of 18th Street S., DES said.

“Progress is being made on isolating breaks and ultimately returning service,” DES said. So far, there’s no estimate of when the repairs will be completed.

Water Main Break Alert: Emergency water main repairs are underway and much of the water is back on, but there are still several buildings without water. There are water outages throughout Crystal City. Contact Water-Sewer at 703-228-6555 with any issues.

— Crystal City (@crystalcityva) March 27, 2019

Update 9:30am: Water service has been restored on Crystal Dr between 15th St S and 18th St S. Crews continue working to isolate other problem lines and restore service to more customers nearby.

— Arlington Department of Environmental Services (@ArlingtonDES) March 27, 2019

Update at 2:20 p.m. — Water service “has been restored to most of the affected buildings,” DES says.

Update 2:15pm: Water has been restored to most of the affected buildings in Crystal City although 2600 Crystal Dr continues to experience low pressure. Repair work on the multiple breaks in the area is ongoing. Questions: 703-228-6555. https://t.co/sIiPntUil6

— Arlington Department of Environmental Services (@ArlingtonDES) March 27, 2019