The submarine accident had no direct link to Okinawa, but fanned the anger of politicians here.

Few survived: a comprehensive survey of submarine accidents and disasters (1986)

More recently, Russia has had three high-profile submarine accidents.

Eleven American nuclear warheads are thought to be lost and unrecovered, primarily in submarine accidents.

An oceanographer who died of oxygen deprivation in a freaky submarine accident.

There are also plaques dedicated to those who lost their lives in submarine accidents during the Cold War.

In the case of the submarine accident, the leaders are now clearly trying to show their close involvement and concern.

Three days after the submarine accident, many questions remain.

Up to August 1914 there were 68 submarine accidents.

It's also believed that the training exercise may have been ordered as a result of several deadly submarine accidents in the 1950s.