CALGARY, Alberta (AP) — A train has derailed on a collapsing
Canada bridge near Calgary, threatening to send five rail cars
carrying a diesel-like substance into a river, officials said
Thursday.  Efforts were under way to keep the cars from falling
off the slowly sagging bridge and then pump out the yet-
unspecified but potentially flammable liquid. No injuries were
reported.  "It appears that the bridge is failing," said
emergency management director Bruce Burrell. The train derailed
after a section of the bridge dropped two feet Thursday morning.
Each car could have 80,000 pounds of flammable product, said
acting Fire Chief Ken Uzeloc. He could not specify the liquid. A
sixth car on the bridge is an empty oil tanker, he said.
Canadian Pacific spokesman Ed Greenberg said the bridge gave way
after most of the eastbound train had crossed.  "The (derailed
cars) are all upright," he said. "There are no leaks reported
and no injuries reported as a result of the incident."
Emergency crews were working to strin