The Latest Breaking News from US Coast Guard

Four research vessels have reached the Titanic search site, but French ship with crucial underwater remote operated vehicle won’t arrive until Wednesday night

As the US Coast Guard announces the vessel suffered a ‘catastrophic implosion’, we chart its journey over the last week

Search and rescue teams are in a race against time to find a Titanic tourist submersible believed to be in the Atlantic Ocean – as the vessel is feared to have run out of air. Ariana Baio and Rachel Sharp report

Communications were lost to the mothership MV Polar Prince around one hour and 45 minutes into the two-hour descent

Rescue team says every noise being tracked and analysed; ‘every possible effort’ being made to bring missing crew home, says Polar Prince co-owner

Banging sounds were heard during the search for the Titan submersible on Tuesday, CNN reported, citing an internal government memo. Other acoustic feedback was heard and "will assist in vectoring surface assets and also indicating continued hope of survivors", according to CNN.

As one of the world’s most extensive underwater search missions was being conducted, relatives of the three Brits on board ill-fated submersible clung to hope they were still alive

Even if the vessel is located under the surface of the ocean, concerns are mounting that huge multi-agency, international search and rescue operation will be helpless to actually retrieve it and save the five men inside

The US Coast Guard held a press conference as the search for the missing OceanGate Expeditions submersible continues after it lost contact off the coast of Newfoundland on a dive to the Titanic wreck