FAIRLESS HILLS, Pa. (AP) — An Amtrak train traveling at 100 mph struck and killed three teenagers trespassing on railroad tracks shortly after it rounded a curve in a suburb north of Philadelphia.

None of the roughly 300 passengers was hurt in Sunday's collision.

The three victims — males ages 14, 15 and 19 — were among a group of five teenagers on the tracks in an industrial area of Falls Township, police said. The other two teens were uninjured.

The engineer of the high-speed Acela Express, which was en route to Washington, D.C., said he saw several people on the tracks up ahead but had no chance of stopping the train in time.