WASHINGTON (AP) - Metro says riders traveling on the rail system this weekend will wait up to 24 minutes for trains.

Metro says that on Saturday and Sunday, trains on the silver, blue, yellow and green lines will operate every 20 minutes.

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On the orange line, trains will run every 20 minutes between West Falls Church and New Carrollton and every 24 minutes between Vienna and West Falls Church.

Riders on the red line will have the shortest wait for trains. Metro says red line trains will operate every eight to 16 minutes.