(CNN) -- A passenger train collided with a vehicle crossing over railroad tracks in northern Florida on Monday, killing a woman and two children in the car, authorities said.
The site of the accident had a railroad crossing sign and stop signs, but no flashing lights or arms, Lt. Bill Leeper of the Florida Highway Patrol told CNN.
The Amtrak train, carrying more than 200 people, did not derail and nobody was injured on board. However, the accident killed Melissa Johnson, 34, and her sons, Brandon, 9, and Blake, 6, who were pronounced dead at the scene.
Video from the scene showed the crushed vehicle with parts and tires tossed around the train track. The accident was reported from the Putnam County site at 3:48 p.m. ET, the Florida Highway Patrol said.
The exact speed of the train at the time of the crash was being determined, Leeper said, but the speed limit along the track is 70 mph.
"It just shows that when you cross railroad tracks, you need to stop, look and listen," Leeper said. "It's basic driver education."
The train left from Miami and was headed to New York. It continued on the trip Monday evening.