(CNN)The bystander's video starts with a chaotic scene: An ambulance runs through an intersection in New York, one of its doors open, lights flashing. It drags what appears to be a person trapped under the vehicle.
#FDNY mourns the loss of FDNY EMT Yadira Arroyo, Station 26, who was killed in the line of duty tonight while serving our city. pic.twitter.com/b3KrzGabYE
Saving lives & caring for New Yorkers was her calling. Today we join all of NYC in mourning the death of @FDNY EMT Yadira Arroyo. pic.twitter.com/X5ebsWFZoI
CNN's Steve Almasy, Ellie Kaufman, Lauren del Valle, Kwegyirba Croffie, Dominique Debucquoy-Dodley and Laura Ly contributed to this report.