I saw earlier today that the eastbound California Zephyr that left California on the 22nd was running over five and a half hours late into Ottumwa, Iowa. As this Amtrak #6(22) approached, I heard over the radio that it had a Union Pacific freight locomotive leading it. Then I heard something about setting out a car in Ottumwa. And then I heard the BNSF dispatcher saying the fire department would meet them as they unloaded passengers at the station. Later comments made it sound like a sleeping car caught on fire, and that all passengers safely disembarked.