Overnight there was a train crash in Fontana near Cherry Ave.
South of 10.

One freight train on top of another. The engineer was taken to hospital over night.

Train wreck in Fontana..10 Freeway shut down.

Emergency crews had to cut off the arm of a freight-train engineer to free him from the wreckage of an overnight crash in Fontana.  A surgical team had to come to the scene.

Train Derailment in Fontana. One Union Pacific train rear-ended another.

Two train workers hospitalized.

West bound traffic is really backed up.
Backed up around Colton area.

From the KTLA website:

Fire crews had to amputate an engineer’s arm in order to free him from the wreckage.

Workers sift through the wreckage of a train collision in Fontana. (KTLA-TV / September 10, 2010)