Latest on bus crash: Police: Investigation will take time

Authorities investigate the scene of a fatal collision between a tractor-trailer and a tour bus on Interstate 380 near Tobyhanna, Pa., Wednesday, June 3, 2015. Multiple people were killed and more than a dozen were sent to hospitals. (Jake Danna Stevens/The Times & Tribune via AP) Authorities investigate the scene of a fatal collision between a tractor-trailer and a tour bus on Interstate 380 near Tobyhanna, Pa., Wednesday, June 3, 2015. Multiple people were killed and more than a dozen were sent to hospitals. (Jake Danna Stevens/The Times & Tribune via AP)

By Associated Press June 4, 2015 2 min read

1:10 p.m.

State police say it will take time to know why a tractor-trailer slammed into the path of a charter bus headed to Niagara Falls, killing the bus driver and two passengers.

Trooper David Peters said Thursday that a second tractor-trailer was involved, but they were still investigating what led to the accident.

Trucking company Cardinal Logistics Management Corp. said it was cooperating fully with authorities and “committed to learning the facts.”

The crash occurred Wednesday morning on Interstate 380 in the Pocono Mountains region. The bus had departed from New York when police said say it collided with a tractor-trailer that had crossed into oncoming traffic.