It wouldn’t be a Friday evening if there wasn’t something a little bit messed up on the Red Line. Red Line trains are sharing the same track between Medical Center and Friendship Heights due to a train experiencing mechanical difficulties. Look out for some minor delays in both directions that will last through the evening rush. UPDATE 5:42 p.m. Scratch that “minor,” folks. WTOP is reporting that two trains actually derailed near the Bethesda station. This DCist editor was stuck on a Glenmont-bound train at the Tenleytown station for about 10 minutes right after this happened, but we eventually got moving. Looks like things got worse since then.

Metro says a six-car train coming into the Bethesda station experienced a brake problem. Spokeswoman Taryn McNeil says another train, with no riders, arrived to pull the first train along.

During the process, the last car on the first train and the first car on the second train derailed.

We also got a tip that someone was removed on a stretcher from the Bethesda station. More when we hear it.