The last significant train collision involving Metro-North occurred in 1988 when a train engineer was killed in Mount Vernon, N.

WSJ: Probe into Conn. train crash giving way to cleanup

February 1992: Head on train collision just outside Cairo kills 43 people.

BBC: Egypt's history of train disasters

The National Transportation Safety Board has begun an investigation into the cause of the cargo train collision near Chaffee, a small town southwest of Cape Girardeau.

WSJ: Mo. highway buckles after rail cars hit overpass

McMillan was one of nine people killed when her train, under automatic computer control, apparently failed to register a signal and avoid a collision with a train that had stopped near a curve between two stations.

CNN: Metro driver called a hero who saved lives in crash

No train passengers were hurt in the collision but the line remained closed until the afternoon.

BBC: Barriers 'held down longer' in Somerset rail crash

The UK's worst crash remains the collision between a passenger train and a wooden prop in Gretna Green in Scotland in May 1915, which claimed 227 lives.

BBC: clapham

Some cars on the second train also derailed as a result of the collision.

WSJ: Probe begins after Conn. commuter trains crash

Meade won a regional Emmy Award for her efforts covering the 1995 collision between a school bus and a train in Fox River Grove, Illinois, that killed seven and injured more than 24 teenagers.

CNN: Anchors & Reporters

Only when the World Trade Center staff member has radioed back can the railroad and its workers be sure that each train has cleared the tunnel, and that there is no risk of a collision.

WSJ: PATH's Road Back Is Rocky

"My roommate and I heard the train signaling an emergency signal -- then we heard the intense impact of the collision, " said Max Tau, whose apartment is about 20 yards from the tracks.

CNN: More than 100 injured as trains collide in Amsterdam