A submersible designed to transport visitors to the Titanic wreckage has gone missing in the Atlantic Ocean.
According to the British Broadcasting Corporation, the vessel went missing alongside its crew on board since Sunday, sparking a massive search and rescue operation.
The vessel lost contact with the submersible about one hour and 45 minutes into the dive, according to the US Coast Guard.
OceanGate Tours said it was looking at all measures to get the employees back safely.
Government organisations and deep sea companies are assisting with the rescue effort.
OceanGate charges $250,000 (£195,612) per seat for expeditions to the Titanic, which remains 3,800m (12,500ft) below the waves approximately 700km (435 miles) south of St. John’s, Newfoundland.
The missing vessel is believed to be OceanGate’s Titan submersible, a truck-sized sub capable of carrying five people with a four-day emergency oxygen supply.
Rear Adm John Mauger of the US Coast Guard told a news conference: “We anticipate there is somewhere between 70 and the full 96 hours available at this point.”
He also said that two aircrafts, a submarine and sonar buoys were involved in the search for the vessel but noted the area in which the search is taking place was “remote”, making operations difficult.
Rear Adm Mauger said the rescue teams were “taking this personally” and were doing everything they could to bring those on board “home safe”.