Reports: Russian sub accident kills more than 20

An accident aboard a nuclear-powered Russian navy submarine doing a test run in the Pacific Ocean killed more than 20 people Sunday, the navy said.

The nuclear reactor aboard the submarine was operating normally and radiation levels were normal, navy spokesman Capt. Igor Dygalo said.

The accident occurred when a fire-extinguishing system went into operation in error aboard the submarine, Dygalo said. He said the dead included sailors and shipbuilders.

The submarine …