Officials probe why trains were on same tracks

mlive.com:

"Federal transportation officials said Saturday their main priority as they investigate a train collision on Chicago's South Side is to figure out why both trains were on the same track at the same time.

People were catapulted from their seats when the double-decker Amtrak train traveling to Chicago from Grand Rapids crashed into a freight train Friday.

Most of the 187 passengers aboard the Pere Marquette walked away without major injuries."