A helicopter ferrying workers to oil rigs off Canada’s Atlantic coast crashed into the ocean today, killing at least one, the Telegram of St. John’s, Newfoundland, reports. One passenger has been rescued, but 16 more remain lost. The chopper reported engine trouble prior to ditching about 40 miles offshore. “The helicopter is not on the surface of the water any more, and the search effort is going on,” an official said. (More Canada stories.)