Missing sub: 'Like finding a needle in a haystack'

The five people on a submersible that disappeared during a dive to the wreck of the Titanic have about 40 hours of breathable air left, the US coast guard says.

Tο υποβρύχιο εξαφανίστηκε κατά αποστολή στο ναυάγιο του Τιτανικού Source: ABACA / ABACA/PA/Alamy

United States and Canadian ships and planes are racing against time to find a missing submarine two days after it disappeared off the coast of southeastern Canada while taking tourists to explore the wreckage of the Titanic.

The US Coast Guard said a boat on the surface - the Polar Prince - lost contact with the submarine, called the Titan, about one hour and 45 minutes after it began diving toward the site of the Titanic's wreckage on Sunday morning.