900 riders stuck on MARC train for more than two hours with no air conditioning

Officials from MARC, Amtrak and the Federal Railroad Administration are investigating why a MARC train stalled eight minutes after it left Union Station on Monday evening and how 900 passengers were stranded in rail cars without air conditioning for more than two hours in sweltering heat, Maryland's transit administrator said Tuesday....

The Prince George's County Fire and Emergency Medical Services Department began getting 911 calls from stranded passengers at 7:50 p.m., after train 538 on the Penn Line had come to a stop near New Carrollton at 6:23 p.m., officials said. About 10 people were treated at the scene for heat-related problems, including profuse sweating, nausea and dizziness, said fire department spokesman Mark Brady. Three of those passengers, including one having an asthma attack, were taken to a hospital, Brady said.