The crash in Canada's capital city between a double-decker bus and a Via Rail train occurred about 8:48am local time (1.48pm BST)
CBC News reports all of Ottawa's emergency responders are heading toward the scene.
All the dead and injured were on the bus, authorities said.
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The note was left for paramedics attending an emergency call in Stoke-on-Trent on Sunday morning.
Monday will see a dull, damp and murky start, with temperatures reaching highs of 13C (55F).
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