The Amtrak train that crashed near Tacoma, Wash., on Monday was moving at 80 miles an hour around a curve that had a 30 mile per hour speed limit, according to a National Transportation Safety Board official.

"That’s one of the things we’re going to be investigating," NTSB Vice Chairman Bella Dinh-Zarr told CBS when asked why the train was going that fast around the bend.

Dinh-Zarr said federal investigators were able to secure the event data recorder from the train and learned about the train's speed by examining the device.

Three people were killed and 70 others were injured when the train derailed Monday morning.

All 13 train cars flew off the railway, including two that fell off the highway overpass and crashed down on cars traveling on Interstate 5.

President Trump responded to the crash by saying it shows the need for a new infrastructure spending bill, which he said would be coming soon. But it's not yet clear whether the accident reflected an infrastructure problem, or was due to operator error.