41.   Could there be another submarine, not yet discovered, running silent and deep with loads of Colombian cocaine?

42.   For days, the Russian navy had insisted the submarine was in good condition.

43.   He would not say, however, whether a U.S. submarine was in the area at the time.

44.   McDade says the provincial government believes some nuclear-armed U.S. submarines have been at Nanoose in recent years, though it has no categorical proof.

45.   Navy officials in Moscow said the submarine was of the Bars class, a nuclear-powered fleet submarine normally armed with nuclear cruise missiles and torpedoes.

46.   On Monday, rescuers managed to open an escape hatch and determined that the submarine was completely flooded, with no chance of any survivors.

47.   One buoy emitted a sonar signal which was received by the other, and a submarine was moving between the two buoys.

48.   Rejecting the claim and demand, Seoul says the submarine was on a mission to land spies and saboteurs.

49.   Seoul claims the submarine was on a mission to land spies and saboteurs.

50.   Russian nuclear submarines have been involved in a string of accidents in recent decades.