A CN Railway official says a span where an Amtrak train spun down an embankment Tuesday was inspected two days before Tuesday's derailment near Flora.

Ian Thomson, a spokesman CN Railway, which owns the tracks, says inspection on Sunday revealed no problems.

He also says two freight trains traveled the same tracks the afternoon of the accident and the crews had reported "very smooth runs.''

Thomson says inspectors check the tracks twice weekly, including the one on Sunday. He says a test vehicle, which looks for flaws in the rail steel, found no exceptions during a run last Friday.

Amtrak's City of New Orleans train jumped its tracks in a swampy area of the Mississippi Delta Tuesday night, killing a 68-year-old passenger and injuring nearly 60 others.

Wednesday, federal officials were at the scene investigating the crash.