Some flooding is underway in the greater New York City metro as steady, soaking rain moves through the Northeast. | CNN

Hundreds of people crowded at Red Line Metro stations on Monday after train delays and mechanical issues relating to both the tracks and signals. Some frustrated riders took to social media to air out their concerns, demanding refunds for Uber and taxi fares and complaining about a lack of communication on the delays. According to some riders, the delays have continued even into Wednesday. Have you seen these issues on Metro? Let us know, then learn more here: http://nbc4dc.com/jgTb9TX #redline

METRO TRAIN CAR FIRE: A passenger started a fire on a Metro car at Eastern Market, forcing the station to evacuate, officials said. Expect delays. Details: http://nbc4dc.com/RGL6m20 | NBC Washington