This morning's collision and derailment of two trains in the Union Station railyard in Washington is apparently causing continuing headaches for MARC riders this afternoon.

A little  before 4 p.m., the Maryland Transit Administration posted this statement on its MARC website:

Due to congestion in the Union Station area due to a derailment in the storage yard earlier today, all trains may be delayed 10-20 minutes departing Union Station.  It is possible that trains will leave on time; do not assume that trains will be late.  Please remain inside Union Station in the passenger waiting area until your train is announced and posted for boarding, this will allow Amtrak and MARC staff to keep you notified on the public address system.   Washington Metrorail will honor MARC tickets today.  We thank you in advance for your patience this afternoon.