Metro is suspending Red Line service at all downtown D.C. stations the weekend after Labor Day.

Starting at 10 p.m. on Sept. 7, all stations from Farragut North to Union Station will be closed fas workers install new fiber optic cable for wireless communications as well as do trackwork and third rail upgrades.

Free buses will replace trains between Dupont Circle and NoMa-Gallaudet U through Metro's closing on Sunday, Sept. 9.

That means that anyone headed to the Washington Nationals games all weekend, the Nation's Triathlon on Sept. 9, the DS 10K on Sept. 8, Adams Morgan Day on Sept. 9 or the D.C. Shorts Film Festival all weekend may need to leave some extra time for travel if riding the Red Line.

Metro says customers can ride limited-stop buses, which will operate between Dupont Circle, Metro Center, Gallery Place and NoMa-Gallaudet U, and expect an additional 30 minutes of travel time, or use local buses that will stop at all stations and expect to add 50 minutes to their journey.

Red Line service will be shut down at the following stations: Farragut North, Metro Center, Gallery Place-Chinatown, Judiciary Square and Union Station.

Blue, Orange, Green and Yellow line service will still be open.

On the three-day Labor Day weekend, no stations will close, but trains will single track on the Red, Blue and Orange lines. Previously scheduled work on the Green and Yellow lines was canceled because of the Labor Day weekend Nationals games, Metro officials said.