PORTLAND, Ore. (AP) — Police say they’ve identified a person struck by an Amtrak train in northwest Portland as a 73-year-old homeless man.The Portland Police Bureau says witnesses told officers Sotelo Mediano was sleeping or lying next to the train tracks when he was struck. He is in critical condition at a Portland hospital.Portland Fire and Rescue spokesman Paul Corah tells The Oregonian that the train was traveling about 10 mph as it pulled into Union Station when the conductor saw some clothes near the tracks. Then he saw a man’s body next to the tracks. The train stopped and the conductor called 911.Amtrak spokeswoman Vernae Graham says the train was traveling to Eugene from Seattle and carried 214 passengers. No one on the train was injured.